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pythonseabornheatmapcolorbar

Set max value for color bar on seaborn heatmap

I need to set the max value on the seaborn heatmap cbar to 2. I've tried:

cbar_kws = { 'ticks' : [0, 2] }
sns.heatmap(tiles, robust=True, fmt="f", cmap= 'RdBu_r', cbar_kws = cbar_kws)

But this doesn't work and the documentation isn't very clear. How would I do this properly?

Solution

  • You want to use the vmin and vmax parameters for the heatmap, as described in the docs:

    vmin, vmax : floats, optional

    Values to anchor the colormap, otherwise they are inferred from the data and other keyword arguments.

    sns.heatmap(tiles, robust=True, fmt="f", cmap='RdBu_r', vmin=0, vmax=2)