How to make one column of bold annotations on a heatmap
How to format (make bold) the annotations in one particular column in a Python Seaborn heatmap? (https://seaborn.pydata.org/generated/seaborn.heatmap.html)
Solution
Using Axes.texts and Text.set_fontweight:
import numpy as np
import seaborn as sns
glue = sns.load_dataset("glue").pivot(columns="Model", index="Task", values="Score")
ax = sns.heatmap(glue, annot=True)
col = 0
for idx in np.arange(glue.size).reshape(glue.shape)[:, col]:
ax.texts[idx].set_fontweight('bold')
Output:
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