State Bin

This is an alpha version of tool to create interactive state bin maps. It has an R API as well as a javascript API.

Installation

You can install rcstatebin from github.

install_github(c('ramnathv/htmlwidgets', 'ramnathv/rcstatebin'))

Usage

Let us start by recreating some analysis done by http://fivethirtyeight.com on where states get their taxes from. You can create an interactive statebin chart with just one line of code, using the formula interface.

library(rcstatebin)
statebin(taxdata, share ~ state | description, control = 'dropdown')

Alternately, you can also use a more traditional syntax.

library(rcstatebin)
statebin(data = taxdata,
  x = "state",
  y = "share",
  facet = "description",
  heading =  "<b>Where do your state's taxes come from?</b>",
  footer = "<small>Source: Census <a href='http://www2.census.gov/govs/statetax/14staxcd.txt'>(Data)</a>",
  colors = RColorBrewer::brewer.pal(5, 'PuRd'),
  control = 'dropdown'
)

If you prefer hexagons instead of rectangles, you can pass type = "hex".

statebin(taxdata, share ~ state | description, control = 'dropdown', type = "hex")

Javascript API

I built d3statebin using a modular approach following the reusable chart guidelines outlined by Mike Bostock

mystatemap = statemap()
  .x("state")
  .y("share")
  .facet("description")
  
d3.select(el)
  .datum(x.data)
  .call(mystatemap)

References

Thanks are due to all these folks below, for building great components were used to create d3statebin

1. [Mike Bostock] for D3.js
2. [Elijah Meeks] for d3.svg.legend
3. [Gregor Aisch] for d3-jetpack
4. [Justin Palmer](Justin Palmer) for d3-tip