Bioinformatics

Describe your context
Please provide us your environment, so we can easily reproduce the issue.

• replace the result of pip list | grep dash below

dash                      2.0.0
dash-bootstrap-components 1.0.0

• if frontend related, tell us your Browser, Version and OS

  • OS: [e.g. iOS] Windows
  • Browser [e.g. chrome, safari]: Chrome 96.0x, Edge 96.0x, Firefox

See https://github.com/biopython/biopython/blob/master/Bio/SeqFeature.py and __add__, need to do the same specifically for integer offsets.

Workaround feature + (-5) instead of feature - 5, see https://twitter.com/tomeraltman/status/1473764959347638273

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

As reported by @jonalv , it can be confusing what is happening when if the globber pattern does not catch any files.

The suggestion is to:

• Log when the globber starts, with the pattern used
• Issue a warning if the globber doesn't match any files at all