Python 为 seaborn 热图上的颜色条设置最大值
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原文地址: http://stackoverflow.com/questions/33779748/
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Set Max value for color bar on seaborn heatmap
提问by Michael Berry
I need to set the max value on the seaborn heatmap cbarto 2. I've tried:
我需要将 seaborn 热图上的最大值设置cbar为 2。我试过：
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?
但这不起作用，文档也不是很清楚。我将如何正确地做到这一点？
采纳答案by tmdavison
I think you want to use the vminand vmaxparameters for the heatmap, as described in the docs:
我认为您想对热图使用vmin和vmax参数，如文档中所述：
vmin, vmax: floats, optional
Values to anchor the colormap, otherwise they are inferred from the data and other keyword arguments.
vmin, vmax: 浮动，可选
锚定颜色图的值，否则它们是从数据和其他关键字参数推断出来的。
sns.heatmap(tiles, robust=True, fmt="f", cmap='RdBu_r', vmin=0, vmax=2)
