import pandas as pd
import numpy as np
import matplotlib.pyplot as plt
s=pd.Series([1,3,5,np.nan,6,8])
dates=pd.date_range('20130101',periods=6)
df=pd.DataFrame(np.random.rand(6,4),index=dates,columns=list('ABCD'))

A B C D

2013-01-01 0.615859 0.354072 0.741003 0.055112

2013-01-02 0.985261 0.017241 0.481214 0.538970

2013-01-03 0.104701 0.647015 0.812034 0.477090

2013-01-04 0.252073 0.862004 0.063743 0.900931

2013-01-05 0.079194 0.779128 0.907441 0.659853

2013-01-06 0.790942 0.906111 0.093382 0.032258

df.T

2013-01-01 00:00:00 2013-01-02 00:00:00 2013-01-03 00:00:00 2013-01-04 00:00:00 2013-01-05 00:00:00 2013-01-06 00:00:00

A 0.615859 0.985261 0.104701 0.252073 0.079194 0.790942

B 0.354072 0.017241 0.647015 0.862004 0.779128 0.906111

C 0.741003 0.481214 0.812034 0.063743 0.907441 0.093382

D 0.055112 0.538970 0.477090 0.900931 0.659853 0.032258