## Question

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 **

## Answer

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`

)

This question is answered By – ImportanceOfBeingErnest

**This answer is collected from stackoverflow and reviewed by FixPython community admins, is licensed under cc by-sa 2.5 , cc by-sa 3.0 and cc by-sa 4.0 **