scverse / scverse/scanpy

Set multiple roots in tree layout

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Python
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Description

Setting one root works well:
sc.pl.paga(adata, layout='eq_tree', root=[9])
Setting multiple roots returns an error:
TypeError: unhashable type: 'list'
Please give an example for using multiple roots, and also explain what does rootlevel= set?

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Research direction

Start by reproducing the sc.pl.paga call with layout='eq_tree' and multiple roots, comparing it with the working root=[9] example. Trace how root and rootlevel are handled, then document a working multiple-root example and explain what rootlevel controls; verify that the reported TypeError is resolved.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
data-visualization
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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