scverse / scverse/scanpy

Request: add PR-AUC metric

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Python
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Description

Similar to my request at the Seurat package, it would just be really nice if the precision-recall area under curve (PR-AUC) could be added alongside the AUC metric in the "top_genes.py" and "top_genes_visual.py" files.

PR-AUC is especially handy when dealing with imbalanced datasets (e.g. most sub-populations in a scRNA-seq experiment).

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First steps

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  3. Fork the repository and make your change on a branch.
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Research direction

Start by reading the existing AUC handling in scanpy/tools/top_genes.py and scanpy/plotting/top_genes_visual.py, including how the two entry points expose and display metrics. Done means PR-AUC is available alongside AUC in both files, with behavior appropriate for imbalanced single-cell populations.

Written by the indexing model from the issue text.

Assessment

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

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