Python, Seaborn FacetGrid change titles

Question

I am trying to create a FacetGrid in Seaborn

My code is currently:

g = sns.FacetGrid(df_reduced, col="ActualExternal", margin_titles=True) bins = np.linspace(0, 100, 20) g.map(plt.hist, "ActualDepth", color="steelblue", bins=bins, width=4.5) 

This gives my the Figure

Now, instead of "ActualExternal =0.0" and "ActualExternal =1.0" I would like the titles "Internal" and "External"

And, instead of "ActualDepth" I would like the xlabel to say "Percentage Depth"

Finally, I would like to add a ylabel of "Number of Defects".

I've tried Googling and have tried a few things but so far no success. Please can you help me?

Thanks

Answer 1

Although you can iterate through the axes and set the titles individually using matplotlib commands, it is cleaner to use seaborn's built-in tools to control the title. For example:

# Add a column of appropriate labels df_reduced['measure'] = df_reduced['ActualExternal'].replace({0: 'Internal',                                                               1: 'External'}  g = sns.FacetGrid(df_reduced, col="measure", margin_titles=True) g.map(plt.hist, "ActualDepth", color="steelblue", bins=bins, width=4.5)  # Adjust title and axis labels directly g.set_titles("{col_name}")  # use this argument literally g.set_axis_labels(x_var="Percentage Depth", y_var="Number of Defects") 

This has the benefit of not needing modification regardless of whether you have 1D or 2D facets.