Using Seaborn, I can create a . Making it vertical is no problem. But I would like to have a horizontal violin plot. I saw that [it is advised](https://python-graph-gallery.com/51-horizontal-violinplot/) to just switch x and y when passing parameters in the [`violinplot`](https://seaborn.pydata.org/generated/seaborn.violinplot.html) function.

I am looking to get the same violin plot, just rotated by 90 degrees and am not able to acheive this by just switching x and y. Here is a simple example:

```
import seaborn as sns
import matplotlib.pyplot as plt
import pandas as pd
import numpy as np
categories = pd.Series(['2008', '2008', '2008', '2009', '2009' ])
values     = pd.Series(np.random.normal(0,1, 5))
sns.violinplot( x=categories, y=values, linewidth=5)
plt.show()
sns.violinplot( y=categories, x=values, linewidth=5)
plt.show()

```

This two graphs. The first is the vertical violin plot, which is as expected. But the second one is not the analogous horizontal violin plot. What is wrong with the command calling the second plot?

[![enter image description here](https://i.stack.imgur.com/zAEDD.png)](https://i.stack.imgur.com/zAEDD.png)