Make bar plot on secondary axis, the line plot on the primary axis wont show.

[tesla1060]

Following issue #3598,

df = pd.DataFrame(np.random.uniform(size=10).reshape(5,2),columns=['A','B'])
df['A'] = df['A'] * 100
df.A.plot()
df.B.plot(kind='bar',secondary_y=True)
plt.show()

This gives the right plot, with A plotted as line in the primary axis, and B is plotted as bar in the secondary axis.

But if I index the dataframe by datetime

df = pd.DataFrame(np.random.uniform(size=10).reshape(5,2),columns=['A','B'])
df = df.set_index(pd.date_range('20130101',periods=5))
df['A'] = df['A'] * 100
df.A.plot()
df.B.plot(kind='bar',secondary_y=True)
plt.show()

This wont plot A as line in the primary axis, only the B as bar in the secondary axis. Not sure why.

[tesla1060]

Update:
It seems because they are share x axis.
The below wont work if sharex=True is not removed.

 f, axarr = plt.subplots(2, sharex=True)
df.A.plot(legend=True, style='r', ax=axarr[0])
df.B.plot(ax=axarr[1], kind='bar', legend=True)
plt.show()

[pablodz]

#41233