Hi,
Trying to plot a heatmap of a distance matrix that is 2500x2500 give or take.
This takes almost a minute to complete using Plots.jl and GR as the backend, and it breaks pluto/plotlyjs when i try it interactively.
In mathematica i can do a matrixplot of a 2000x2000 matrix in less than a second … seems like in julia doing the computation is fast, showing it is slow and in mma doing the computation is slow and showing it is fast 
i’m figuring i got something wrong - i read some stuff on the viz category; couldn’t find anything that talked about very large matrixplots.
You can get the behavior I’m talking about by simply doing:
> using StatsPlots
> @time heatmap(randn((2500,2500)))
0.139569 seconds (11.03 k allocations: 61.574 MiB)
Except that time is a lie because I counted 48 seconds before the window with GKSTerm showed me anything and the cursor for julia prompt came back.
System - Mac OS X 10.13, julia 1.5
8 posts - 6 participants