scverse / scverse/scanpy

sc.tl.rank_gens_groups pts

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Description

when n_genes is set to a value (such as 2000), and pts=True, then sc.tl.rank_genes_groups will compute the fraction of cells expressing the genes, but the output includes all the genes, not just the 2000 genes.

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First steps

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Research direction

Start at the sc.tl.rank_genes_groups entry point and reproduce the behavior with n_genes=2000 and pts=True. Trace how the selected genes and expression fractions are returned, then verify that the output contains only the requested number of genes rather than all genes.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
bioinformatics
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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