Cannot specify both x and y in Deephaven express dx.violin

[mofojed]

Description

If you try and specify both x and y in Deephaven express, it throws an error about how you can't set both x and y. But with violin plots you should be able to.

Steps to reproduce

1. Run the following snippet:

import plotly.express as px

df = px.data.tips()
fig_violin = px.violin(df, y="tip", x="smoker", color="sex", box=True, points="all", hover_data=df.columns)

from deephaven.pandas import to_table

tips = to_table(df)

import deephaven.plot.express as dx

dx_violin = dx.violin(tips, x="smoker", y="tip", color="sex", box=True, points="all")

Expected results

1. Plot fig_violin and plot dx_violin should both open, and look similar

Actual results

1. Plot fig_violin opens, but plot dx_violin does not. An error is outputted to the logs:

r-Scheduler-Serial-1 | .c.ConsoleServiceGrpcImpl | Error running script: java.lang.RuntimeException: Error in Python interpreter:
Type: <class 'ValueError'>
Value: Cannot specify both x and y
Line: 130
Namespace: violin
File: /opt/deephaven/venv/lib/python3.10/site-packages/deephaven/plot/express/plots/distribution.py
Traceback (most recent call last):
  File "<string>", line 12, in <module>
  File "/opt/deephaven/venv/lib/python3.10/site-packages/deephaven/plot/express/plots/distribution.py", line 130, in violin

Versions

Engine Version: 0.35.0-SNAPSHOT
Web UI Version: 0.74.0
Java Version: 21.0.3
Barrage Version: 0.6.0
Browser Name: Chrome 123
OS Name: macOS 10.15.7

[mofojed]

Actually I may be incorrect - if you use the by= property you can plot it correctly it appears:

dx_violin = dx.violin(tips, y="tip", by="smoker", color="sex", box=True, points="all")

[jnumainville]

You should be able to plot both. Not sure why I thought otherwise. Maybe because you only have to specify one dimension and the second is optional. Plot by can be used as a workaround for now but really those are slightly different results.