Change Seaborn heatmap Y-ticklabels font color for alternate labels-CodePudding

I have a seaborn heatmap with more than 100 labels on Y-axis. I want to change the font color of the Y-labels to red and blue in alternate way. If I have 10 Y-labels, then 5 labels should have the blue font & 5 labels should have the red font in an alternate fashion.

Kindly Help

CodePudding user response：

you can achieve this using ax.ticklabel.font(). You can even use font to easily differentiate the neighbors. A sample code is given here.

import numpy as np; np.random.seed(0)
import seaborn as sns; sns.set_theme()
uniform_data = np.random.rand(10, 12)
ax = sns.heatmap(uniform_data)
for i, tick_label in enumerate(ax.axes.get_yticklabels()):
    if i%2:
        tick_label.set_color("blue")
        tick_label.set_fontsize("15")
    else:
        tick_label.set_color("red")
        tick_label.set_fontsize("10")

Output