How to increase the font size of the legend in my Seaborn FactorPlot/FacetGrid?

Question

The instructions from this question don't work for Seaborn FacetPlots. Would it be possible to get the method to do the same?

Answer 1

A facetgrid legend is not part of the axes, but part of the facetgrid object. The legend is still a standard matplotlib legend and can be manipulated as such.

plt.setp(g._legend.get_title(), fontsize=20)

Where g is your facetgrid object returned after you call the function making it.

Answer 2

If you're using a newer version of matplotlib there's an easier way to change legend font sizes -

plt.legend(fontsize='x-large', title_fontsize='40')

https://matplotlib.org/api/_as_gen/matplotlib.pyplot.legend.html

Might depend on the version of matplotlib you're using. I'm using 2.2.3 and it has the fontsize parameter but not the title_fontsize.