CVX/CVX.ipynb

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     "source": [
      "# Convex Optimization in Julia\n",
      "\n",
      "## Madeleine Udell | JuliaCon 2014"
     ]
    },
    {
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     "source": [
      "## CVX.jl team\n",
      "\n",
      "* [CVX.jl](https://github.com/cvxgrp/CVX.jl): Madeleine Udell, Karanveer Mohan, David Zeng, Jenny Hong\n",
      "<!---* [ParallelSparseMatMul.jl](https://github.com/madeleineudell/ParallelSparseMatMul.jl): Madeleine Udell\n",
      "--->"
     ]
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     "source": [
      "## Collaborators/Inspiration:\n",
      "\n",
      "* [cvx](http://www.cvxr.com): Michael Grant, Stephen Boyd\n",
      "* [cvxpy](https://github.com/cvxgrp/cvxpy): Steven Diamond, Eric Chu, Stephen Boyd\n",
      "* [ecos](https://github.com/ifa-ethz/ecos): Alexander Domahidi, Eric Chu, Stephen Boyd, Michael Grant, Johan L\u00f6fberg\n",
      "* [scs](https://github.com/cvxgrp/scs): Brendan O\u2019Donoghue, Eric Chu, Neal Parikh, Stephen Boyd"
     ]
    },
    {
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     "source": [
      "# Convex optimization"
     ]
    },
    {
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     "source": [
      "### Definition: \n",
      "$f$ is **convex** if for all $\\theta \\in [0,1]$\n",
      "$$\n",
      "f(\\theta x + (1-\\theta)y ) \\leq \\theta f(x) + (1-\\theta) f(y)\n",
      "$$\n",
      "\n",
      "equivalently, \n",
      "\n",
      "* $f$ has nonnegative (upward) curvature\n",
      "* the graph of $f$ never lies above its chords\n",
      "* $f'' \\geq 0$ (if $f$ is differentiable)\n",
      "* sublevel sets $\\{x: f(x) \\leq \\alpha\\}$ are convex sets\n",
      "\n",
      "![chords](chord.png)\n",
      "\n",
      "(thanks, [Gadfly](www.github.com/dcjones/Gadfly.jl)!)"
     ]
    },
    {
     "cell_type": "code",
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     "input": [
      "using Gadfly\n",
      "f(x) = square(x)\n",
      "chord(x; a=-3, b=4) = if x<=b && x>=a return (f(b)-f(a))/(b-a)*(x-a) + f(a) else return NaN end\n",
      "p = plot([f,chord],-5,5)\n",
      "draw(PNG(\"chord.png\", 14cm, 8cm), p)"
     ],
     "language": "python",
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        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map at abstractarray.jl:1313\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
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        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n"
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        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
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        " in map at abstractarray.jl:1316\n",
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        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n"
       ]
      },
      {
       "output_type": "stream",
       "stream": "stderr",
       "text": [
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n"
       ]
      },
      {
       "output_type": "stream",
       "stream": "stderr",
       "text": [
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n"
       ]
      },
      {
       "output_type": "stream",
       "stream": "stderr",
       "text": [
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n"
       ]
      },
      {
       "output_type": "stream",
       "stream": "stderr",
       "text": [
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n"
       ]
      },
      {
       "output_type": "stream",
       "stream": "stderr",
       "text": [
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n"
       ]
      },
      {
       "output_type": "stream",
       "stream": "stderr",
       "text": [
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in f at In[50]:2\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n"
       ]
      },
      {
       "output_type": "stream",
       "stream": "stderr",
       "text": [
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n"
       ]
      },
      {
       "output_type": "stream",
       "stream": "stderr",
       "text": [
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n"
       ]
      },
      {
       "output_type": "stream",
       "stream": "stderr",
       "text": [
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n"
       ]
      },
      {
       "output_type": "stream",
       "stream": "stderr",
       "text": [
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n"
       ]
      },
      {
       "output_type": "stream",
       "stream": "stderr",
       "text": [
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n"
       ]
      },
      {
       "output_type": "stream",
       "stream": "stderr",
       "text": [
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n"
       ]
      },
      {
       "output_type": "stream",
       "stream": "stderr",
       "text": [
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n"
       ]
      },
      {
       "output_type": "stream",
       "stream": "stderr",
       "text": [
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n"
       ]
      },
      {
       "output_type": "stream",
       "stream": "stderr",
       "text": [
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n"
       ]
      },
      {
       "output_type": "stream",
       "stream": "stderr",
       "text": [
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n"
       ]
      },
      {
       "output_type": "stream",
       "stream": "stderr",
       "text": [
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n"
       ]
      },
      {
       "output_type": "stream",
       "stream": "stderr",
       "text": [
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n"
       ]
      },
      {
       "output_type": "stream",
       "stream": "stderr",
       "text": [
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n"
       ]
      },
      {
       "output_type": "stream",
       "stream": "stderr",
       "text": [
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n",
        "WARNING: square(x::Number) is deprecated, use x * x instead.\n",
        " in chord at In[50]:3\n",
        " in map_to! at abstractarray.jl:1296\n",
        " in map at abstractarray.jl:1316\n",
        " in evalfunc at /Users/madeleine/.julia/Gadfly/src/poetry.jl:24\n",
        " in datafy at /Users/madeleine/.julia/Gadfly/src/poetry.jl:44\n",
        " in plot at /Users/madeleine/.julia/Gadfly/src/poetry.jl:78\n",
        " in include_string at loading.jl:97\n",
        " in execute_request_0x535c5df2 at /Users/madeleine/.julia/IJulia/src/execute_request.jl:135\n",
        " in eventloop at /Users/madeleine/.julia/IJulia/src/IJulia.jl:74\n",
        " in anonymous at task.jl:335\n"
       ]
      }
     ],
     "prompt_number": 50
    },
    {
     "cell_type": "markdown",
     "metadata": {
      "slideshow": {
       "slide_type": "subslide"
      }
     },
     "source": [
      "### Definition\n",
      "* $f$ is **concave** iff $-f$ is convex\n",
      "* $f$ is **affine** iff $f$ is both convex and concave"
     ]
    },
    {
     "cell_type": "markdown",
     "metadata": {
      "slideshow": {
       "slide_type": "subslide"
      }
     },
     "source": [
      "## Convex optimization (traditional form)\n",
      "\n",
      "$$\n",
      "\\begin{array}{ll} \n",
      "\\mbox{minimize}  & f_0(x) \\\\\n",
      "\\mbox{subject to} & f_i(x) \\leq 0, \\quad i=1, \\ldots, m_1\\\\\n",
      "& h_i(x) = 0, \\quad i=1, \\ldots, m_2\\\\\n",
      "\\end{array}\n",
      "$$\n",
      "\n",
      "* variable $x\\in \\mathbf{R}^n$\n",
      "* $f_i$ are all convex\n",
      "* $h_i$ are all affine"
     ]
    },
    {
     "cell_type": "markdown",
     "metadata": {
      "slideshow": {
       "slide_type": "subslide"
      }
     },
     "source": [
      "## Convex optimization (conic form)\n",
      "\n",
      "$$\n",
      "\\begin{array}{ll} \n",
      "\\mbox{minimize}  & c^T x \\\\\n",
      "    \\mbox{subject to} & Ax = b\\\\\n",
      "    & x \\in \\mathcal K\\\\\n",
      "\\end{array}\n",
      "$$\n",
      "\n",
      "where $\\mathcal K$ is a **convex cone**\n",
      "\n",
      "$$ x \\in \\mathcal K \\iff rx \\in \\mathcal K, \\quad \\forall r>0$$\n",
      "\n",
      "examples:\n",
      "\n",
      "* positive orthant \n",
      "\n",
      "$$\\mathcal K_+ = \\{x: x\\geq 0\\}$$\n",
      "    \n",
      "* second order cone \n",
      "\n",
      "$$\\mathcal K_{\\mathrm{SOC}} = \\{(x,t): \\|x\\|_2 \\leq t\\}$$\n",
      "    \n",
      "* semidefinite cone \n",
      "\n",
      "$$\\mathcal K_{\\mathrm{SDP}} = \\{X: X = X^T,~ v^T X v \\geq 0,~ \\forall v \\in \\mathbf{R}^n\\}$$\n",
      "    "
     ]
    },
    {
     "cell_type": "markdown",
     "metadata": {
      "slideshow": {
       "slide_type": "subslide"
      }
     },
     "source": [
      "## Why convex optimization?\n",
      "\n",
      "* beautiful, nearly complete theory\n",
      "    * duality, optimality conditions, ...\n",
      "* effective algorithms (in theory and practice)\n",
      "    * get **global solution** (and optimality certificate)\n",
      "    * **fast** solvers (and provable polynomial complexity)\n",
      "* conceptual unification of many methods\n",
      "* useful even for nonconvex problems\n",
      "    * subroutine in larger algorithm (k-means, EM)\n",
      "    * bounds/heuristics for hard problems\n",
      "* lots of applications\n",
      "    * machine learning, statistics, control, finance, signal and image processing, vision, networking, ..."
     ]
    },
    {
     "cell_type": "markdown",
     "metadata": {
      "slideshow": {
       "slide_type": "slide"
      }
     },
     "source": [
      "# Quick convex prototyping"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "using CVX"
     ],
     "language": "python",
     "metadata": {
      "slideshow": {
       "slide_type": "fragment"
      }
     },
     "outputs": [],
     "prompt_number": 220
    },
    {
     "cell_type": "markdown",
     "metadata": {
      "slideshow": {
       "slide_type": "subslide"
      }
     },
     "source": [
      "## Variables"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "# Scalar variable\n",
      "x = Variable()"
     ],
     "language": "python",
     "metadata": {
      "slideshow": {
       "slide_type": "-"
      }
     },
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 287,
       "text": [
        "Variable((1, 1), any)"
       ]
      }
     ],
     "prompt_number": 287
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "# (Column) vector variable\n",
      "y = Variable(4)"
     ],
     "language": "python",
     "metadata": {
      "slideshow": {
       "slide_type": "-"
      }
     },
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 288,
       "text": [
        "Variable((4, 1), any)"
       ]
      }
     ],
     "prompt_number": 288
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "# Matrix variable\n",
      "z = Variable(4, 2)"
     ],
     "language": "python",
     "metadata": {
      "slideshow": {
       "slide_type": "-"
      }
     },
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 289,
       "text": [
        "Variable((4, 2), any)"
       ]
      }
     ],
     "prompt_number": 289
    },
    {
     "cell_type": "markdown",
     "metadata": {
      "slideshow": {
       "slide_type": "subslide"
      }
     },
     "source": [
      "# Expressions\n",
      "\n",
      "* operate on variables to form *convex expressions*"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "# indexing, multiplication, addition\n",
      "e1 = y[1] + 2*x"
     ],
     "language": "python",
     "metadata": {
      "slideshow": {
       "slide_type": "fragment"
      }
     },
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 290,
       "text": [
        "CvxExpr((1, 1), affine, any)"
       ]
      }
     ],
     "prompt_number": 290
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "# expressions can be affine, convex, or concave\n",
      "e3 = sqrt(x)"
     ],
     "language": "python",
     "metadata": {
      "slideshow": {
       "slide_type": "fragment"
      }
     },
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 291,
       "text": [
        "CvxExpr((1, 1), concave, pos)"
       ]
      }
     ],
     "prompt_number": 291
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "# many built-in ``atoms''\n",
      "e2 = 4 * pos(x) + max(abs(y)) + norm(z[:,1],2)"
     ],
     "language": "python",
     "metadata": {
      "slideshow": {
       "slide_type": "fragment"
      }
     },
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 292,
       "text": [
        "CvxExpr((1, 1), convex, pos)"
       ]
      }
     ],
     "prompt_number": 292
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "# not convex! more on this later...\n",
      "e3 = square(y[1]) + sqrt(x)"
     ],
     "language": "python",
     "metadata": {
      "slideshow": {
       "slide_type": "fragment"
      }
     },
     "outputs": [
      {
       "ename": "LoadError",
       "evalue": "Expression not DCP compliant\nwhile loading In[227], in expression starting on line 2",
       "output_type": "pyerr",
       "traceback": [
        "Expression not DCP compliant\nwhile loading In[227], in expression starting on line 2",
        " in promote_vexity_add at /Users/madeleine/.julia/CVX/src/utilities/promotions.jl:9",
        " in .+ at /Users/madeleine/.julia/CVX/src/atoms/affine/add_subtract.jl:58",
        " in + at /Users/madeleine/.julia/CVX/src/atoms/affine/add_subtract.jl:131"
       ]
      }
     ],
     "prompt_number": 227
    },
    {
     "cell_type": "markdown",
     "metadata": {
      "slideshow": {
       "slide_type": "subslide"
      }
     },
     "source": [
      "# Constraints"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "# affine equality constraint\n",
      "A = randn(3,4); b = randn(3)\n",
      "c1 = A*y == b"
     ],
     "language": "python",
     "metadata": {
      "slideshow": {
       "slide_type": "fragment"
      }
     },
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 228,
       "text": [
        "CvxConstr: CvxExpr((3, 1), affine, any) == [1.4251,-0.92333,-1.83753]"
       ]
      }
     ],
     "prompt_number": 228
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "# convex inequality constraint\n",
      "c2 = norm(y,2) <= 2"
     ],
     "language": "python",
     "metadata": {
      "slideshow": {
       "slide_type": "fragment"
      }
     },
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 229,
       "text": [
        "CvxConstr: CvxExpr((1, 1), convex, pos) <= 2"
       ]
      }
     ],
     "prompt_number": 229
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "# constraints are parsed to verify convexity\n",
      "c3 = norm(z[:,1]) + 7 <= min(y[3],x)"
     ],
     "language": "python",
     "metadata": {
      "slideshow": {
       "slide_type": "fragment"
      }
     },
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 230,
       "text": [
        "CvxConstr: CvxExpr((1, 1), convex, pos) <= CvxExpr((1, 1), concave, any)"
       ]
      }
     ],
     "prompt_number": 230
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "# not convex!\n",
      "c3 = norm(z[:,1]) + 7 <= max(y[3],x)"
     ],
     "language": "python",
     "metadata": {
      "slideshow": {
       "slide_type": "fragment"
      }
     },
     "outputs": [
      {
       "ename": "LoadError",
       "evalue": "Constraint is not DCP compliant\nwhile loading In[231], in expression starting on line 2",
       "output_type": "pyerr",
       "traceback": [
        "Constraint is not DCP compliant\nwhile loading In[231], in expression starting on line 2",
        " in CvxConstr at /Users/madeleine/.julia/CVX/src/constraints/constraints.jl:66",
        " in <= at /Users/madeleine/.julia/CVX/src/constraints/constraints.jl:156"
       ]
      }
     ],
     "prompt_number": 231
    },
    {
     "cell_type": "markdown",
     "metadata": {
      "slideshow": {
       "slide_type": "subslide"
      }
     },
     "source": [
      "# Problems"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "objective = 2*x + 1 - sqrt(sum(y))\n",
      "constraint = x >= max(y)\n",
      "p = minimize(objective, constraint)"
     ],
     "language": "python",
     "metadata": {
      "slideshow": {
       "slide_type": "fragment"
      }
     },
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 232,
       "text": [
        "Problem: minimize CvxExpr((1, 1), convex, any) \n",
        "\t subject to\n",
        "\t\tCvxConstr: CvxExpr((1, 1), convex, any) <= Variable((1, 1), any)\n",
        "\t current status: not yet solved"
       ]
      }
     ],
     "prompt_number": 232
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "# solve the problem\n",
      "solve!(p)\n",
      "p"
     ],
     "language": "python",
     "metadata": {
      "slideshow": {
       "slide_type": "fragment"
      }
     },
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 233,
       "text": [
        "Problem: minimize CvxExpr((1, 1), convex, any) \n",
        "\t subject to\n",
        "\t\tCvxConstr: CvxExpr((1, 1), convex, any) <= Variable((1, 1), any)\n",
        "\t current status: solved with optimal value of 0.5"
       ]
      }
     ],
     "prompt_number": 233
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "p.optval"
     ],
     "language": "python",
     "metadata": {
      "slideshow": {
       "slide_type": "fragment"
      }
     },
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 234,
       "text": [
        "0.5000000002744622"
       ]
      }
     ],
     "prompt_number": 234
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "# can evaluate expressions directly\n",
      "objective.evaluate()"
     ],
     "language": "python",
     "metadata": {
      "slideshow": {
       "slide_type": "subslide"
      }
     },
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 235,
       "text": [
        "1x1 Array{Float64,2}:\n",
        " 0.5"
       ]
      }
     ],
     "prompt_number": 235
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "x.value"
     ],
     "language": "python",
     "metadata": {
      "slideshow": {
       "slide_type": "fragment"
      }
     },
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 236,
       "text": [
        "0.2500003653350797"
       ]
      }
     ],
     "prompt_number": 236
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "# lagrange dual variable\n",
      "constraint.dual_value"
     ],
     "language": "python",
     "metadata": {
      "slideshow": {
       "slide_type": "fragment"
      }
     },
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 237,
       "text": [
        "1x1 Array{Float64,2}:\n",
        " 2.0"
       ]
      }
     ],
     "prompt_number": 237
    },
    {
     "cell_type": "markdown",
     "metadata": {
      "slideshow": {
       "slide_type": "subslide"
      }
     },
     "source": [
      "## Problem variants\n",
      "\n",
      "* maximization problems \n",
      "    ````\n",
      "    maximize(concaveExpr, constraints)\n",
      "    ````\n",
      "* constraint satisfaction problems \n",
      "    ````\n",
      "    satisfy(constraints)\n",
      "    ````"
     ]
    },
    {
     "cell_type": "markdown",
     "metadata": {
      "slideshow": {
       "slide_type": "slide"
      }
     },
     "source": [
      "# Disciplined convex programming (DCP)\n",
      "\n",
      "Infer convexity of expressions by induction:\n",
      "\n",
      "* variables have known vexity (affine) and sign\n",
      "* library of atoms with known vexity and sign (as function of their arguments)\n",
      "\n",
      "More information at [dcp.stanford.edu](dcp.stanford.edu)"
     ]
    },
    {
     "cell_type": "markdown",
     "metadata": {
      "slideshow": {
       "slide_type": "subslide"
      }
     },
     "source": [
      "## Convex expressions to convex optimization\n",
      "\n",
      "CVX.jl simply checks that \n",
      "\n",
      "* objective is\n",
      "    * `minimize(convexExpr)`\n",
      "    * `maximize(concaveExpr)`\n",
      "* constraints are\n",
      "    * `convexExpr <= concaveExpr`\n",
      "    * `affineExpr == 0`\n",
      "* (remember affine expressions are both convex and concave)"
     ]
    },
    {
     "cell_type": "markdown",
     "metadata": {
      "slideshow": {
       "slide_type": "subslide"
      }
     },
     "source": [
      "## Convexity inference\n",
      "1. $f \\circ g(x)$ is convex in $x$ if\n",
      "    * $f$ is convex increasing and $g$ is convex \n",
      "    * $f$ is convex decreasing and $g$ is concave \n",
      "\n",
      "1. $f \\circ g(x)$ is concave in $x$ if\n",
      "    * $f$ is concave increasing and $g$ is concave \n",
      "    * $f$ is concave decreasing and $g$ is convex\n",
      "\n",
      "For smooth functions, derivation via chain rule:\n",
      "$$\n",
      "(f \\circ g)''(x) = f''(g(x))(g(x))^2 + f'(g(x))g''(x)\n",
      "$$\n",
      "\n",
      "example: \n",
      "* `+` is convex and increasing in its arguments\n",
      "* so `convexExpr + convexExpr` is convex"
     ]
    },
    {
     "cell_type": "markdown",
     "metadata": {
      "slideshow": {
       "slide_type": "subslide"
      }
     },
     "source": [
      "# Library of atoms"
     ]
    },
    {
     "cell_type": "markdown",
     "metadata": {
      "slideshow": {
       "slide_type": "subslide"
      }
     },
     "source": [
      "### Affine atoms\n",
      "\n",
      " - addition, subtraction, multiplication, division: `+, -, /, *`\n",
      " - indexing into vectors and matrices: `x[1:4, 2:3]`\n",
      " - k-th diagonal of a matrix: `diag(x, k)`\n",
      " - transpose: `x'`\n",
      " - dot product: `x'*y` or `dot(x, y)`\n",
      " - reshape, vec: `reshape(x, 2, 3)` or `vec(x)`\n",
      " - min, max element of a vector or matrix: `min(x), max(x)`\n",
      " - horizontal and vertical stacking: `hcat(x, y); vertcat(x, y)`"
     ]
    },
    {
     "cell_type": "markdown",
     "metadata": {
      "slideshow": {
       "slide_type": "subslide"
      }
     },
     "source": [
      "### Elementwise atoms\n",
      "\n",
      "These atoms are applied elementwise to their arguments, returning an expression of the same size.\n",
      "\n",
      "atom | description | vexity | slope | implicit constraint\n",
      "-----|--------|--------|------- |-------\n",
      "`min(x, y)` | $min(x,y)$ | convex | increasing | none\n",
      "`max(x, y)` | $min(x,y)$ | convex | increasing | none\n",
      "`pos(x)` | $max(x,0)$ | convex | increasing | none\n",
      "`neg(x)` | $max(-x,0)$ | convex | decreasing | none\n",
      "`inv_pos(x)` | $1/max(x,0)$ | convex | decreasing | $x>0$\n",
      "`sqrt(x)` | $\\sqrt{x}$ | convex | decreasing | $x>0$\n",
      "`square(x)`, `x^2` | $x^2$ | convex | increasing on $x \\ge 0$, decreasing on $x \\le 0$ | none\n",
      "`abs(x)` | $|x|$ | convex | increasing on $x \\ge 0$, decreasing on $x \\le 0$ | none\n",
      "`geo_mean(x, y)` | $\\sqrt{xy}$ | concave | increasing | $x \\ge 0$, $y \\ge 0$"
     ]
    },
    {
     "cell_type": "markdown",
     "metadata": {
      "slideshow": {
       "slide_type": "subslide"
      }
     },
     "source": [
      "### Vector and Matrix atoms\n",
      "\n",
      "These atoms take vector or matrix arguments and return scalar expressions.\n",
      "\n",
      "atom | description | vexity | slope | implicit constraint\n",
      "-----|--------|--------|------- |-------\n",
      "`norm(x, p)` | $(\\sum x_i^p)^{1/p}$ | convex | increasing on $x \\ge 0$, decreasing on $x \\le 0$ | `p = 1, 2, Inf`\n",
      "`vecnorm(x, p)` | $(\\sum x_{ij}^p)^{1/p}$ | convex | increasing on $x \\ge 0$, decreasing on $x \\le 0$ | `p = 1, 2, Inf`\n",
      "`quad_form(x, P)` | $x^T P x$ | convex in $X$, affine in $P$ | increasing on $x \\ge 0$, decreasing on $x \\le 0$, increasing in $P$ | either $x$ or $P$ must be constant\n",
      "`quad_over_lin(x, y)` | $x^T x/y$ | convex | increasing on $x \\ge 0$, decreasing on $x \\le 0$, decreasing in $y$ | $y > 0$\n",
      "`sum_squares(x)` | $\\sum x_i^2$ | convex | increasing on $x \\ge 0$, decreasing on $x \\le 0$ | none"
     ]
    },
    {
     "cell_type": "markdown",
     "metadata": {
      "slideshow": {
       "slide_type": "subslide"
      }
     },
     "source": [
      "## DCP examples"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "# $f$ is convex increasing and $g$ is convex\n",
      "square(pos(x))"
     ],
     "language": "python",
     "metadata": {
      "slideshow": {
       "slide_type": "fragment"
      }
     },
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 32,
       "text": [
        "CvxExpr((1, 1), convex, pos)"
       ]
      }
     ],
     "prompt_number": 32
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "# $f$ is convex decreasing and $g$ is concave \n",
      "inv_pos(sqrt(x))"
     ],
     "language": "python",
     "metadata": {
      "slideshow": {
       "slide_type": "fragment"
      }
     },
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 36,
       "text": [
        "CvxExpr((1, 1), convex, pos)"
       ]
      }
     ],
     "prompt_number": 36
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "# $f$ is concave increasing and $g$ is concave \n",
      "sqrt(sqrt(x))"
     ],
     "language": "python",
     "metadata": {
      "slideshow": {
       "slide_type": "fragment"
      }
     },
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 163,
       "text": [
        "CvxExpr((1, 1), concave, pos)"
       ]
      }
     ],
     "prompt_number": 163
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "# not every convex expression is DCP compliant\n",
      "sqrt(square(x))\n",
      "# here, better use abs(x)"
     ],
     "language": "python",
     "metadata": {
      "slideshow": {
       "slide_type": "subslide"
      }
     },
     "outputs": [
      {
       "ename": "LoadError",
       "evalue": "Geometric mean of convex expressions is not DCP compliant\nwhile loading In[165], in expression starting on line 2",
       "output_type": "pyerr",
       "traceback": [
        "Geometric mean of convex expressions is not DCP compliant\nwhile loading In[165], in expression starting on line 2",
        " in geo_mean at /Users/madeleine/.julia/CVX/src/atoms/elementwise/geo_mean.jl:17",
        " in sqrt at /Users/madeleine/.julia/CVX/src/atoms/elementwise/sqrt.jl:5"
       ]
      }
     ],
     "prompt_number": 165
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "# convex + concave => not DCP compliant\n",
      "e3 = square(y[1]) + sqrt(x)"
     ],
     "language": "python",
     "metadata": {
      "slideshow": {
       "slide_type": "fragment"
      }
     },
     "outputs": [
      {
       "ename": "LoadError",
       "evalue": "Expression not DCP compliant\nwhile loading In[162], in expression starting on line 2",
       "output_type": "pyerr",
       "traceback": [
        "Expression not DCP compliant\nwhile loading In[162], in expression starting on line 2",
        " in promote_vexity_add at /Users/madeleine/.julia/CVX/src/utilities/promotions.jl:9",
        " in .+ at /Users/madeleine/.julia/CVX/src/atoms/affine/add_subtract.jl:58",
        " in + at /Users/madeleine/.julia/CVX/src/atoms/affine/add_subtract.jl:131"
       ]
      }
     ],
     "prompt_number": 162
    },
    {
     "cell_type": "markdown",
     "metadata": {
      "slideshow": {
       "slide_type": "slide"
      }
     },
     "source": [
      "# Example problem: global connectome models\n",
      "\n",
      "![brain](brain.jpg)\n",
      "\n",
      "[Pestilli et al, [mba](https://github.com/francopestilli/mba)]"
     ]
    },
    {
     "cell_type": "markdown",
     "metadata": {
      "slideshow": {
       "slide_type": "notes"
      }
     },
     "source": [
      "Purple is the SLF Superior Lateral Fasciculus, damage in this portion of the white matter (in the right hemisphere) create s\u201dorienting\u201d problems. It is generally believed to be related to spatial orienting and attention. The syndrome is called spatial neglect.\n",
      "\n",
      "Blue, is the arcuate fasciculus. This fasciculus has been involved in reading and language comprehension. It projects (terminates) into the Broca\u2019s and Wernicke\u2019s areas that are involved in language comprehension and production. See figure in the LiFE paper for a complete list of names for the fascicles."
     ]
    },
    {
     "cell_type": "markdown",
     "metadata": {
      "slideshow": {
       "slide_type": "subslide"
      }
     },
     "source": [
      "## Linear Fascile Evaluation\n",
      "\n",
      "$$ Ax \\approx b $$\n",
      "\n",
      "* $b$ gives MR signal (flow) observed at each location in brain (\"voxel\")\n",
      "* columns of $A$ represent possible fibers\n",
      "    * entry $a_{ij}$ gives flow at voxel $i$ due to fiber $j$\n",
      "* $x$ selects width of each fiber\n",
      "    * MR signal (flow) due to fiber proportional to width\n",
      "* $A \\in {\\bf R}^{m \\times n}$, $m \\approx 1e7$, $n \\approx 1e6$\n",
      "\n",
      "[Pestilli et al, [life](https://github.com/francopestilli/life)]"
     ]
    },
    {
     "cell_type": "markdown",
     "metadata": {
      "slideshow": {
       "slide_type": "subslide"
      }
     },
     "source": [
      "## Modeling \n",
      "\n",
      "* widths should be nonnegative\n",
      "    * so require $x \\geq 0$\n",
      "* errors are gaussian\n",
      "    * so penalty $\\|Ax - b\\|_2^2$\n",
      "\n",
      "$$\n",
      "\\begin{array}{ll}\n",
      "\\mbox{minimize} & \\|Ax - b\\|_2^2 \\\\\n",
      "\\mbox{subject to} & x \\geq 0\n",
      "\\end{array}\n",
      "$$"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "# example data\n",
      "srand(3)\n",
      "m, n, p = 40, 20, .1\n",
      "A = sprand(m, n, p)\n",
      "b = randn(m)\n",
      "\n",
      "b = A*rand(n) + .3*randn(m);\n",
      "x0 = sprand(n,1,.6)\n",
      "b = A*x0 + .3*(rand(m). - 1/2);\n",
      "x0"
     ],
     "language": "python",
     "metadata": {
      "slideshow": {
       "slide_type": "skip"
      }
     },
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 246,
       "text": [
        "20x1 sparse matrix with 13 Float64 entries:\n",
        "\t[2 ,  1]  =  0.287812\n",
        "\t[3 ,  1]  =  0.890808\n",
        "\t[4 ,  1]  =  0.145068\n",
        "\t[6 ,  1]  =  0.408157\n",
        "\t[8 ,  1]  =  0.666225\n",
        "\t[9 ,  1]  =  0.0247443\n",
        "\t[12,  1]  =  0.959874\n",
        "\t[13,  1]  =  0.0213016\n",
        "\t[15,  1]  =  0.255651\n",
        "\t[17,  1]  =  0.462867\n",
        "\t[18,  1]  =  0.25023\n",
        "\t[19,  1]  =  0.362935\n",
        "\t[20,  1]  =  0.809224"
       ]
      }
     ],
     "prompt_number": 246
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "# construct nonnegative least squares problem\n",
      "x = Variable(size(A, 2))\n",
      "objective = sum_squares(A*x-b)\n",
      "constraint = x>=0\n",
      "p_nnlsq = minimize(objective, constraint);\n",
      "\n",
      "# solve\n",
      "solve!(p_nnlsq)\n",
      "x_nnlsq = x.value\n",
      "round(x.value, 2)"
     ],
     "language": "python",
     "metadata": {
      "slideshow": {
       "slide_type": "subslide"
      }
     },
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 278,
       "text": [
        "20x1 Array{Float64,2}:\n",
        " 0.0 \n",
        " 0.53\n",
        " 0.87\n",
        " 0.09\n",
        " 0.07\n",
        " 0.32\n",
        " 0.01\n",
        " 0.59\n",
        " 0.0 \n",
        " 0.0 \n",
        " 0.0 \n",
        " 0.82\n",
        " 0.23\n",
        " 0.0 \n",
        " 0.0 \n",
        " 0.08\n",
        " 0.66\n",
        " 0.53\n",
        " 0.3 \n",
        " 0.89"
       ]
      }
     ],
     "prompt_number": 278
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "# which constraints are active?\n",
      "round(constraint.dual_value, 2)"
     ],
     "language": "python",
     "metadata": {
      "slideshow": {
       "slide_type": "subslide"
      }
     },
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 248,
       "text": [
        "20x1 Array{Float64,2}:\n",
        " 0.19\n",
        " 0.0 \n",
        " 0.0 \n",
        " 0.0 \n",
        " 0.0 \n",
        " 0.0 \n",
        " 0.0 \n",
        " 0.0 \n",
        " 0.0 \n",
        " 0.2 \n",
        " 0.1 \n",
        " 0.0 \n",
        " 0.0 \n",
        " 0.07\n",
        " 0.0 \n",
        " 0.0 \n",
        " 0.0 \n",
        " 0.0 \n",
        " 0.0 \n",
        " 0.0 "
       ]
      }
     ],
     "prompt_number": 248
    },
    {
     "cell_type": "markdown",
     "metadata": {
      "slideshow": {
       "slide_type": "subslide"
      }
     },
     "source": [
      "## More modeling\n",
      "\n",
      "* widths vary by 100x!\n",
      "    * add quadratic regularization to encourage uniform widths\n",
      "    * see how solution quality changes\n",
      "    \n",
      "$$\n",
      "\\begin{array}{ll}\n",
      "\\mbox{minimize} & \\|Ax - b\\|_2^2 + .1\\|x\\|_2^2 \\\\\n",
      "\\mbox{subject to} & x \\geq 0\n",
      "\\end{array}\n",
      "$$"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "# construct quadratically-regularized nonnegative least squares problem\n",
      "quad_reg = 0.1*sum_squares(x)\n",
      "p_qreg = minimize(objective + quad_reg, constraint);\n",
      "\n",
      "# solve\n",
      "solve!(p_qreg)\n",
      "x_qreg = x.value\n",
      "round(x.value,2)"
     ],
     "language": "python",
     "metadata": {
      "slideshow": {
       "slide_type": "subslide"
      }
     },
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 280,
       "text": [
        "20x1 Array{Float64,2}:\n",
        " 0.0 \n",
        " 0.0 \n",
        " 0.82\n",
        " 0.1 \n",
        " 0.1 \n",
        " 0.29\n",
        " 0.01\n",
        " 0.53\n",
        " 0.0 \n",
        " 0.0 \n",
        " 0.0 \n",
        " 0.77\n",
        " 0.15\n",
        " 0.0 \n",
        " 0.03\n",
        " 0.09\n",
        " 0.61\n",
        " 0.0 \n",
        " 0.34\n",
        " 0.85"
       ]
      }
     ],
     "prompt_number": 280
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "# objective value for nnlsq\n",
      "p_nnlsq.optval"
     ],
     "language": "python",
     "metadata": {
      "slideshow": {
       "slide_type": "-"
      }
     },
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 281,
       "text": [
        "0.19276176086618171"
       ]
      }
     ],
     "prompt_number": 281
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "# objective value for quadratically regularized nnlsq is not much worse\n",
      "objective.evaluate()"
     ],
     "language": "python",
     "metadata": {
      "slideshow": {
       "slide_type": "-"
      }
     },
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 282,
       "text": [
        "1x1 Array{Float64,2}:\n",
        " 0.21088"
       ]
      }
     ],
     "prompt_number": 282
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "# but solution is quite different\n",
      "norm(x.value - x_nnlsq)"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 284,
       "text": [
        "0.7610856092015054"
       ]
      }
     ],
     "prompt_number": 284
    },
    {
     "cell_type": "markdown",
     "metadata": {
      "slideshow": {
       "slide_type": "subslide"
      }
     },
     "source": [
      "## More modeling\n",
      "\n",
      "* we believe *most* of these putative fibers don't really exist\n",
      "    * add \"lasso\" $\\|\\cdot\\|_1$ constraint to encourage sparsity\n",
      "    * see how solution quality changes\n",
      "    \n",
      "$$\n",
      "\\begin{array}{ll}\n",
      "\\mbox{minimize} & \\|Ax - b\\|_2^2 + .1\\|x\\|_1 \\\\\n",
      "\\mbox{subject to} & x \\geq 0 \\\\\n",
      "\\end{array}\n",
      "$$"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "# construct lasso nonnegative least squares problem\n",
      "p_lasso = minimize(objective+.1*norm_1(x), constraint);\n",
      "\n",
      "# solve\n",
      "solve!(p_lasso)\n",
      "round(x.value,2)"
     ],
     "language": "python",
     "metadata": {
      "slideshow": {
       "slide_type": "subslide"
      }
     },
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 285,
       "text": [
        "20x1 Array{Float64,2}:\n",
        " 0.0 \n",
        " 0.0 \n",
        " 0.84\n",
        " 0.08\n",
        " 0.06\n",
        " 0.27\n",
        " 0.0 \n",
        " 0.54\n",
        " 0.0 \n",
        " 0.0 \n",
        " 0.0 \n",
        " 0.8 \n",
        " 0.02\n",
        " 0.0 \n",
        " 0.0 \n",
        " 0.08\n",
        " 0.63\n",
        " 0.0 \n",
        " 0.32\n",
        " 0.87"
       ]
      }
     ],
     "prompt_number": 285
    },
    {
     "cell_type": "markdown",
     "metadata": {
      "slideshow": {
       "slide_type": "-"
      }
     },
     "source": [
      "* model is much more parsimonius\n",
      "* value is not much worse"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "p_nnlsq.optval, objective.evaluate()[1]"
     ],
     "language": "python",
     "metadata": {
      "slideshow": {
       "slide_type": "-"
      }
     },
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 274,
       "text": [
        "(0.19276176086618171,0.21228000939040856)"
       ]
      }
     ],
     "prompt_number": 274
    },
    {
     "cell_type": "markdown",
     "metadata": {
      "slideshow": {
       "slide_type": "slide"
      }
     },
     "source": [
      "# How does it work?\n",
      "\n",
      "* construct abstract syntax tree\n",
      "* parse to canonical form\n",
      "* pass to solver"
     ]
    },
    {
     "cell_type": "markdown",
     "metadata": {
      "slideshow": {
       "slide_type": "subslide"
      }
     },
     "source": [
      "## Construct abstract syntax tree\n",
      "\n",
      "(done automatically during parsing)\n",
      "\n",
      "* for objective\n",
      "* for each constraint"
     ]
    },
    {
     "cell_type": "markdown",
     "metadata": {
      "slideshow": {
       "slide_type": "fragment"
      }
     },
     "source": [
      "example:\n",
      "\n",
      "    p = minimize(norm(A*x-b,2), x>=0)\n",
      "    \n",
      "becomes\n",
      "    \n",
      "    p.objective   = (:norm_2, [(:-, [(:*, [A, x])])])\n",
      "    p.constraints = [(:<=, 0, x)]\n",
      "    \n",
      "**Remark:** AST does not depend on solver format (or on convexity of expressions)"
     ]
    },
    {
     "cell_type": "markdown",
     "metadata": {
      "slideshow": {
       "slide_type": "subslide"
      }
     },
     "source": [
      "## Parse to canonical form: introduce new variables\n",
      "\n",
      "one variable per atom\n",
      "\n",
      "$$\n",
      "\\begin{array}{ll}\n",
      "\\mbox{minimize} & v_3 \\\\\n",
      "\\mbox{subject to} & v_1 = Ax \\\\\n",
      "& v_2 = v_1 - b \\\\\n",
      "& v_3 = \\|v_2\\|_2 \\\\\n",
      "& x\\geq 0\n",
      "\\end{array}\n",
      "$$"
     ]
    },
    {
     "cell_type": "markdown",
     "metadata": {
      "slideshow": {
       "slide_type": "subslide"
      }
     },
     "source": [
      "## Parse to canonical form: relax convex constraints\n",
      "\n",
      "nonconvex equality constraints become convex inequality constraints\n",
      "\n",
      "$$\n",
      "\\begin{array}{ll}\n",
      "\\mbox{minimize} & v_3 \\\\\n",
      "\\mbox{subject to} & v_1 = Ax \\\\\n",
      "& v_2 = v_1 - b \\\\\n",
      "& v_3 \\geq \\|v_2\\|_2 \\\\\n",
      "& x\\geq 0\n",
      "\\end{array}\n",
      "$$\n",
      "\n",
      "**Convexity:** relaxation is tight at solution"
     ]
    },
    {
     "cell_type": "markdown",
     "metadata": {
      "slideshow": {
       "slide_type": "subslide"
      }
     },
     "source": [
      "## Parse to canonical form: canonicalize\n",
      "\n",
      "every atom knows its canonical form\n",
      "\n",
      "$$\n",
      "\\begin{array}{ll}\n",
      "\\mbox{minimize} & v_3 \\\\\n",
      "\\mbox{subject to} & v_1 - Ax = 0 \\\\\n",
      "& v_1 - v_2 = b \\\\\n",
      "& (v_2, v_3) \\in \\mathcal K_{\\mathrm{SOC}}^m \\\\\n",
      "& x \\in \\mathcal K_+^n\n",
      "\\end{array}\n",
      "$$"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "## In code\n",
      "m,n = 4,2\n",
      "A = randn(m,n)\n",
      "b = randn(m)\n",
      "x = Variable(n)\n",
      "(norm(A*x-b,2)).canon_form()"
     ],
     "language": "python",
     "metadata": {
      "slideshow": {
       "slide_type": "subslide"
      }
     },
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 68,
       "text": [
        "3-element Array{CanonicalConstr,1}:\n",
        " CanonicalConstr: 59951101963610290\n",
        "uid of expressions: [5938539468375678499,5278464316068676566]\n",
        "coefficients of above expressions: Union(Array{T,2},Array{T,1},SparseMatrixCSC{Tv,Ti<:Integer})[\n",
        "5x1 sparse matrix with 1 Float64 entries:\n",
        "\t[1, 1]  =  -1.0,\n",
        "\n",
        "5x4 sparse matrix with 4 Float64 entries:\n",
        "\t[2, 1]  =  -1.0\n",
        "\t[3, 2]  =  -1.0\n",
        "\t[4, 3]  =  -1.0\n",
        "\t[5, 4]  =  -1.0]\n",
        "constant: 5x1 Array{Float64,2}:\n",
        " 0.0\n",
        " 0.0\n",
        " 0.0\n",
        " 0.0\n",
        " 0.0\n",
        "equality constraint: false\n",
        "conic constraint: true                                                                                                                                                    \n",
        " CanonicalConstr: -8789780452370056496\n",
        "uid of expressions: [-4288737069367410605,5278464316068676566]\n",
        "coefficients of above expressions: Union(Array{T,2},Array{T,1},SparseMatrixCSC{Tv,Ti<:Integer})[\n",
        "4x4 sparse matrix with 4 Float64 entries:\n",
        "\t[1, 1]  =  -1.0\n",
        "\t[2, 2]  =  -1.0\n",
        "\t[3, 3]  =  -1.0\n",
        "\t[4, 4]  =  -1.0,\n",
        "\n",
        "4x4 sparse matrix with 4 Float64 entries:\n",
        "\t[1, 1]  =  1.0\n",
        "\t[2, 2]  =  1.0\n",
        "\t[3, 3]  =  1.0\n",
        "\t[4, 4]  =  1.0]\n",
        "constant: [0.381226,0.19952,-0.810801,1.59757]\n",
        "equality constraint: true\n",
        "conic constraint: false                                                                                                           \n",
        " CanonicalConstr: -5582952067882719387\n",
        "uid of expressions: [-4288737069367410605,-7473415289591705372]\n",
        "coefficients of above expressions: Union(Array{T,2},Array{T,1},SparseMatrixCSC{Tv,Ti<:Integer})[\n",
        "4x4 sparse matrix with 4 Float64 entries:\n",
        "\t[1, 1]  =  1.0\n",
        "\t[2, 2]  =  1.0\n",
        "\t[3, 3]  =  1.0\n",
        "\t[4, 4]  =  1.0,\n",
        "\n",
        "4x2 sparse matrix with 8 Float64 entries:\n",
        "\t[1, 1]  =  1.34801\n",
        "\t[2, 1]  =  0.157278\n",
        "\t[3, 1]  =  -1.71337\n",
        "\t[4, 1]  =  -0.781707\n",
        "\t[1, 2]  =  -0.566337\n",
        "\t[2, 2]  =  0.113667\n",
        "\t[3, 2]  =  -0.979222\n",
        "\t[4, 2]  =  0.39923]\n",
        "constant: 4x1 sparse matrix with 0 Float64 entries:\n",
        "equality constraint: true\n",
        "conic constraint: false"
       ]
      }
     ],
     "prompt_number": 68
    },
    {
     "cell_type": "markdown",
     "metadata": {
      "slideshow": {
       "slide_type": "subslide"
      }
     },
     "source": [
      "## Pass to solver: stuff matrices\n",
      "\n",
      "Note *no data has been touched* before this step\n",
      "\n",
      "$$\n",
      "\\begin{array}{ll}\n",
      "\\mbox{minimize} & \n",
      "    \\begin{bmatrix}\n",
      "    0 & 0 & 1 & 0\n",
      "    \\end{bmatrix}\n",
      "    \\begin{bmatrix}\n",
      "    v_1 \\\\ v_2 \\\\ v_3 \\\\ x\n",
      "    \\end{bmatrix} \\\\\n",
      "\\mbox{subject to} & \n",
      "    \\begin{bmatrix}\n",
      "    I & 0 & 0 & -A \\\\\n",
      "    I & -I & 0 & 0\n",
      "    \\end{bmatrix}\n",
      "    \\begin{bmatrix}\n",
      "    v_1 \\\\ v_2 \\\\ v_3 \\\\ x\n",
      "    \\end{bmatrix}\n",
      "    =  \n",
      "    \\begin{bmatrix}\n",
      "    0 \\\\ b\n",
      "    \\end{bmatrix} \\\\\n",
      "& \n",
      "    \\begin{bmatrix}\n",
      "    v_1 \\\\ v_2 \\\\ v_3 \\\\ x\n",
      "    \\end{bmatrix}\n",
      "    \\in \\mathbf{R}^m \\times \\mathcal K_{\\mathrm{SOC}}^m \\times \\mathcal K_+^n\n",
      "\\end{array}\n",
      "$$\n",
      "\n",
      "* we have arrived at conic form!"
     ]
    },
    {
     "cell_type": "markdown",
     "metadata": {
      "slideshow": {
       "slide_type": "subslide"
      }
     },
     "source": [
      "## Pass to solver\n",
      "\n",
      "problem is now in standard conic form\n",
      "$$\n",
      "\\begin{array}{ll} \n",
      "\\mbox{minimize}  & c^T x \\\\\n",
      "    \\mbox{subject to} & Ax = b\\\\\n",
      "    & x \\in \\mathcal K\\\\\n",
      "\\end{array}\n",
      "$$\n",
      "\n",
      "call C libraries\n",
      "* $\\mathcal K = $ positive orthant $\\implies$ linear program\n",
      "* $\\mathcal K = $ second order cone $\\implies$ SOCP\n",
      "* $\\mathcal K = $ semidefinite cone $\\implies$ SDP\n",
      "\n",
      "currently, uses [ecos](https://github.com/ifa-ethz/ecos), an SOCP solver\n",
      "* works for up to $\\sim 10000$ variables"
     ]
    },
    {
     "cell_type": "markdown",
     "metadata": {
      "slideshow": {
       "slide_type": "slide"
      }
     },
     "source": [
      "# Future work\n",
      "\n",
      "* integration with [MathProgBase](https://github.com/JuliaOpt/MathProgBase.jl) interfaces\n",
      "    * standard form conic programs\n",
      "    * simplex LP solvers\n",
      "* new backend solvers\n",
      "    * larger scale problems (100,000+ variables)\n",
      "    * SDP and exponential cone constraints\n",
      "    * first target: [SCS](https://github.com/cvxgrp/scs)\n",
      "* new atoms, such as\n",
      "    * `log`\n",
      "    * `exp`\n",
      "    * `logdet`\n",
      "    * `kl_div`\n",
      "    * your PR"
     ]
    },
    {
     "cell_type": "markdown",
     "metadata": {
      "slideshow": {
       "slide_type": "subslide"
      }
     },
     "source": [
      "## How you can contribute\n",
      "\n",
      "* new examples\n",
      "* new solvers\n",
      "    * in MathProgBase\n",
      "    * parse AST to your own favorite standard form\n",
      "* new atoms\n",
      "    * easy way: in terms of previous atoms\n",
      "\n",
      "            function sum_squares(x::AbstractCvxExpr)\n",
      "              return square(norm_2(x))\n",
      "            end\n",
      "\n",
      "    * hard way: define canonical form\n",
      "\n",
      "            function norm_2(x::AbstractCvxExpr)\n",
      "              this = CvxExpr(:norm_2, [x], vexity, :pos, (1, 1))\n",
      "              cone_size = get_vectorized_size(x) + 1\n",
      "\n",
      "              coeffs1 = spzeros(cone_size, 1)\n",
      "              coeffs1[1] = -1\n",
      "              coeffs2 = [spzeros(1, get_vectorized_size(x)); -speye(get_vectorized_size(x))]\n",
      "              coeffs =  [coeffs1, coeffs2]\n",
      "              vars = [this.uid, x.uid]\n",
      "              constant = zeros(cone_size, 1)\n",
      "\n",
      "              canon_constr_array = [CanonicalConstr(coeffs, vars, constant)]\n",
      "              append!(canon_constr_array, x.canon_form())\n",
      "              this.canon_form = ()->canon_constr_array\n",
      "              this.evaluate = ()->Base.norm(x.evaluate(), 2)\n",
      "              return this\n",
      "            end"
     ]
    }
   ],
   "metadata": {}
  }
 ]
}