plot 平均线 plot 堆叠条 plot 在 ZF02113237A5A46403E34CEE

Question

I have a stacked bar chart of this nature done with Matplotlib in python:

Here is my working code:

df.resample("M")["ComName"].value_counts().unstack().rename(lambda  x: x.strftime("%b %Y")).plot(kind="bar", stacked=True, figsize=(20,20), color=color2)

How can I plot the a line plot of the average of each month on top of this plot

Answer 1

It should be something like this:

s = df.resample("M")["ComName"].value_counts().unstack().rename(lambda x: x.strftime("%b %Y"))
ax = s.plot(kind="bar", stacked=True, figsize=(20,20), color=color2)
ax.plot(s.index, s.mean(1), linewidth=2.0)