Draw a horizontal line line at specific position/annotate a Facetgrid in seaborn

Question

A have produced a boxplot with Facetgrid in seaborn the following way

# Import the dataset
tips = sns.load_dataset(\"tips\")

# Plot using Facegrid, separated by         


        

Answer 1

Just add to the top answer, if you want do the same thing with figures in cols.

g = sns.FacetGrid(df_long, col="variable", size=5, aspect=1.5,col_wrap=1,sharey=False)
# df_long is a long table with 3 variables
g.map(sns.boxplot, "label", "value", palette='Set2')
g.axes[0].axhline(1, ls='--',c='r')
g.axes[1].axhline(1, ls='--',c='r')
g.axes[2].axhline(0.5, ls='--',c='r')
g.map(plt.xticks, rotation=70) 
plt.show()

result