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transcriptomics

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scanpy
Yves33
Yves33 commented Nov 26, 2021

In pl.pca_loagings(), there should be an option to limit the number of points plotted (basically n_points from ranking)

Why: I recently used the AnnData/scanpy suite to perform some analysis on a low number of genes (less than 30, amplified by qRT-PCR).
As the number of features is less than 30 (30 being the default value for n_points in ranking(adata,*args,**kwargs), the loadings appear twice

Enhancement Area - Plotting 🌺 good first issue
MxMstrmn
MxMstrmn commented Aug 9, 2021

I was not aware how .h5ad stores their dicts and it took me quite a bit to figure out why my stored adata.uns['key'] was different from the original adata.uns['key']. Part of the problem was the large dataset which made examination of potential fail cases difficult.

Eventuelly, I figured out that some molecular descriptors include the sequence '(+/-)' which caused anndata to store the d

bug good first issue

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