scanpy.pl.DotPlot.legend

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scanpy.pl.DotPlot.legend#

DotPlot.legend(*, show=True, show_size_legend=True, show_colorbar=True, size_title='Fraction of cells\\nin group (%)', colorbar_title='Mean expression\\nin group', width=1.5)[source]#

Configures dot size and the colorbar legends

Parameters:
show bool | None (default: True)

Set to False to hide the default plot of the legends. This sets the legend width to zero, which will result in a wider main plot.

show_size_legend bool | None (default: True)

Set to False to hide the dot size legend

show_colorbar bool | None (default: True)

Set to False to hide the colorbar legend

size_title str | None (default: 'Fraction of cells\\nin group (%)')

Title for the dot size legend. Use ‘n’ to add line breaks. Appears on top of dot sizes

colorbar_title str | None (default: 'Mean expression\\nin group')

Title for the color bar. Use ‘n’ to add line breaks. Appears on top of the color bar

width float | None (default: 1.5)

Width of the legends area. The unit is the same as in matplotlib (inches).

Return type:

Self

Returns:

DotPlot

Examples

Set color bar title:

>>> import scanpy as sc
>>> adata = sc.datasets.pbmc68k_reduced()
>>> markers = {'T-cell': 'CD3D', 'B-cell': 'CD79A', 'myeloid': 'CST3'}
>>> dp = sc.pl.DotPlot(adata, markers, groupby='bulk_labels')
>>> dp.legend(colorbar_title='log(UMI counts + 1)').show()
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