Figure out a way to have the options of an AxisLike object to be close to its constructor name.

[KristofferC]

Here is an example:

pgf.@pgf begin
axis = pgf.Axis(
    pgf.Plot(
        pgf.Coordinates(
            [
                (2, -2.8559703),
                (3, -3.5301677),
                (4, -4.3050655),
                (5, -5.1413136),
                (6, -6.0322865),
                (7, -6.9675052),
                (8, -7.9377747),
            ]
        ),
        {
            color = "red",
            mark  = "x"
        }
    ),
    {
        xlabel = "Cost",
	ylabel = "Error",
    }
)
end

The "problem" here is that the options for e.g. the Axis are very far away from the start of the Axis command. In .tex, the options are close to the begin{axis}. Perhaps one should be able to use a keyword argument or dispatch on the type. The problem with dispatching on the type is of course something like Axis("foo", "bar")...

[tpapp]

We should think hard about unifying constructor syntax for Axis, Plot, Table, Coordinates, etc. These take a combination of keyword => value pairs, associative collections which are sometimes options, vectors and matrices, etc. This leads to many combinations, and sometimes validation happens only with print_tex.

We could require that all options are put in a wrapper type, eg Options (could still be OrderedDict internally), which can then be dispatched on. @pgf would produce this wrapper automatically.

[KristofferC]

This work on master now by dispatching on an ordered dict as first argument. Not ideal but rest can be dealt with in #44.