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ViewsHow to add a label to Seaborn Heatmap color bar?
If I have the following data and Seaborn Heatmap:
import pandas as pd
data = pd.DataFrame({'x':(1,2,3,4),'y':(1,2,3,4),'z':(14,15,23,2)})
sns.heatmap(data.pivot_table(index='y', columns='x', values='z'))
How do I add a label to the colour bar?
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Santiago Trujillo
2 answers
Answer question0
You could set it afterwards after collecting it from an ax, or simply pass a label in cbar_kws like so.
import seaborn as sns
import pandas as pd
data = pd.DataFrame({'x':(1,2,3,4),'y':(1,2,3,4),'z':(14,15,23,2)})
sns.heatmap(data.pivot_table(index='y', columns='x', values='z'),
cbar_kws={'label': 'colorbar title'})
It is worth noting that cbar_kws can be handy for setting other attributes on the colorbar such as tick frequency or formatting.
·
Santiago Trujillo
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0
You can use:
ax = sns.heatmap(data.pivot_table(index='y', columns='x', values='z'))
ax.collections[0].colorbar.set_label("Hello")
·
Santiago Trujillo
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