pointplot

How to add a vertical line to a seaborn pointplot Question: I want to add a vertical line in sns.pointplot(), which has datetime xticks, I used ax.axvline, but the position of the line was wrong. my dataframe like this: city year PM c1 2011 2 c1 2012 2 c1 2013 3 c2 2011 3 c2 …