Plots.jl/docs/gadfly_examples.md

Lines

A simple line plot of the 3 columns.

plot(rand(100,3))

Functions

Plot multiple functions

plot(0:0.01:4π,[sin,cos])

Global

Change the guides/background without a separate call.

plot(rand(10); title="TITLE",xlabel="XLABEL",ylabel="YLABEL",background_color=RGB(0.5,0.5,0.5))

Vectors

Plot multiple series with different numbers of points.

plot(Vector[rand(10),rand(20)]; marker=:ellipse,markersize=8)

Vectors w/ pluralized args

Mix arguments that apply to all series with arguments unique to each series.

plot(Vector[rand(10),rand(20)]; marker=:ellipse,markersize=8,colors=[:red,:blue])

Build plot in pieces

Start with a base plot...

plot(rand(100) / 3; reg=true,fillto=0)

and add to it later.

scatter!(rand(100); markersize=6,color=:blue)

Heatmaps

heatmap(randn(10000),randn(10000); nbins=200)

Lots of line types

Options: (:line, :step, :stepinverted, :sticks, :dots, :none, :heatmap, :hexbin, :hist, :bar)
Note: some may not work with all backends

plot(rand(20,4); linetypes=[:line,:step,:sticks,:dots])

Bar

x is the midpoint of the bar. (todo: allow passing of edges instead of midpoints)

bar(randn(1000))

Histogram

note: fillto isn't supported on all backends

histogram(randn(1000); nbins=50,fillto=20)

Subplots

subplot and subplot! are distinct commands which create many plots and add series to them in a circular fashion. You can define the layout with keyword params... either set the number of plots n (and optionally number of rows nr or number of columns nc), or you can set the layout directly with layout.

Note: Gadfly is not very friendly here, and although you can create a plot and save a PNG, I haven't been able to actually display it.

subplot(randn(100,5); layout=[1,1,3],linetypes=[:line,:hist,:dots,:step,:bar],nbins=10,legend=false)

Adding to subplots

Note here the automatic grid layout, as well as the order in which new series are added to the plots.

subplot(randn(100,5); n=4)

subplot!(randn(100,3))