Asked By – Flops
When plotting heatmaps with seaborn (and correlation matrices with matplotlib) the first and the last row is cut in halve.
This happens also when I run this minimal code example which I found online.
import pandas as pd import seaborn as sns import matplotlib.pyplot as plt data = pd.read_csv('https://raw.githubusercontent.com/resbaz/r-novice-gapminder-files/master/data/gapminder-FiveYearData.csv') plt.figure(figsize=(10,5)) sns.heatmap(data.corr()) plt.show()
The labels at the y axis are on the correct spot, but the rows aren’t completely there.
A few days ago, it work as intended. Since then, I installed texlive-xetex so I removed it again but it didn’t solve my problem.
Any ideas what I could be missing?
Now we will see solution for issue: matplotlib/seaborn: first and last row cut in half of heatmap plot
Unfortunately matplotlib 3.1.1 broke seaborn heatmaps; and in general inverted axes with fixed ticks.
This is fixed in the current development version; you may hence
- revert to matplotlib 3.1.0
- use matplotlib 3.1.2 or higher
- set the heatmap limits manually (
ax.set_ylim(bottom, top) # set the ylim to bottom, top)