How to Plot Heatmap in Julia
I Have a (21,100)-Array and Want to Plot It as 2D-Histogram (Heatmap). If I Plot It Naively with Histogram2D(A, Nbins= 20) It Only Plots the First 21 Points. I...
I have a (21,100)-array and want to plot it as 2D-Histogram (heatmap).
If I plot it naively with histogram2d(A, nbins= 20) it only plots the first 21 points.
I tried to loop it, but then I had 100 histograms with 21 points. Another idea would be to put the data in a (2100)-array but this seems like a bad idea.
Addition: I have a scatter plot/data and want it shown as a heatmap. The more points in one bin the "darker" the color. So I have 21 x-values each with 100 y-values.
1 Answer
Here it is a typical scenario for a heatmap plot:
using Plots
gr()
data = rand(21,100)
heatmap(1:size(data,1),
1:size(data,2), data,
c=cgrad([:blue, :white,:red, :yellow]),
xlabel="x values", ylabel="y values",
title="My title")
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