Examples

using Heatmap, Gadfly, RDatasets, StatsBase
hm = Heatmap

[ Info: Loading DataFrames support into Gadfly.jl

Raw matrix

set_default_plot_size(8inch, 6inch)
mtcars = dataset("datasets", "mtcars")
Z = zscore(Matrix{Float64}(mtcars[:,2:11]),1)
plot(z=Z, x=mtcars.Model, y=names(mtcars)[2:11], hm.heatmap(matrix="raw"),
    Geom.rectbin, hm.dendrogram(dendrogram="both"),
 Scale.color_continuous(colormap=Scale.lab_gradient("steelblue3","white","darkred"))
)

Distance matrix

set_default_plot_size(8inch, 8inch)
plot(z=Z, x=mtcars.Model, y=mtcars.Model, hm.heatmap(matrix="distance"),
    Geom.rectbin, hm.dendrogram(dendrogram="both"),
 Scale.color_continuous(colormap=Scale.lab_gradient("steelblue3","white","darkred")),
    Coord.cartesian(aspect_ratio=1)
)