Pandas Secondary Axis

Question

I have the following data frame

    Date        A           B
0   2017-05-31  17453139    5.865738
1   2017-06-30  17425164    5.272728
2   2017-07-31  17480         


        

Answer 1

IIUC:

ax = df.plot('Date','A')
ax1 = ax.twinx()
df.plot('Date','B',ax=ax1, color='r')

Output:

Or you can use secondary_y in Pandas plot:

ax = df.plot('Date','A')
df.plot('Date','B',secondary_y=True, ax=ax)

Output: