Better document legend_loc=None for embedding plots

[dagarfield]

• Additional function parameters / changed functionality / changed defaults?
• New analysis tool: A simple analysis tool you have been using and are missing in sc.tools?
• New plotting function: A kind of plot you would like to seein sc.pl?
• External tools: Do you know an existing package that should go into sc.external.*?
• Other?

It is a lovely tool, but it would be great to be able to not plot figure legends in, e.g. sc.pl.umap, so that all plots (regardless of what annotation is being colored) are exactly the same size. Perhaps there is already a way to do this, but I've yet to find it.

Thanks!

[ivirshup]

You can pass legend_loc=None.

Thanks for noting this. Looking at the docs, I can definitely see how this isn't clear.

legend_loc : str, optional (default: 'right margin')
    Location of legend, either `'on data'`, `'right margin'` or a valid keyword
    for the `loc` parameter of :class:`~matplotlib.legend.Legend`.

[dagarfield]

Tada! Works perfectly.
Thanks for the tip, and may this GitHub comment serve as substrate to all future google searches on this issue.

[dagarfield]

So one small update here -- it works like a charm for categorical variables, but not for continuous variables.
e.g.

sc.pl.umap(testData, save = fileName, color='CCL5',s=50,frameon=False,legend_loc = None)

Still gives something like a legend:

Presumably this is because the color strip on the right is not actually a legend in the underlying matplotlib?

[aldakata]

This should be explicitly mentioned in the docs

[flying-sheep]

agreed, I’m doing a PR for it