plotly / plotly/plotly.py

Updating `xaxis_range` changes y-axis range for `px.scatter` when marginals are displayed.

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bug P3
Dominant language
Python
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Description

Problem

When using px.scatter and displaying both marginals, updating the xaxis_range will change the yaxis_range such that data will be cut off.

Changing the yaxis_range works as expected.
The bug only occurs when using both marginals.

I am using the current latest version 5.22.0.

Code

import plotly.express as px

# figure normal
fig = px.scatter(
    x=[3, 37, 37, 69],
    y=[1.8, 3.9, 2.7, 4.8],
    marginal_x="histogram",
    marginal_y="histogram",
)

fig.show()

# x axis is modified correctly
# but y axis is modified too
fig.update_layout(xaxis_range=[0, 185])

fig.show()

The first fig.show() produces:
working

The second fig.show() produces:
bugged

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by running the provided Python reproduction with px.scatter and both marginal histograms, then inspect how the resulting figure handles xaxis_range and yaxis_range. Done means changing xaxis_range no longer changes or clips the y-axis range, with a regression test covering both marginals.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
data-visualization
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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