python pandas 自动填充，重新采样 resample

# -*- coding: utf-8 -*-

import pandas as pd

from datetime import datetime
a=pd.date_range('2015-11-1','2015-11-2',freq='h')
print a
import pandas as pd
from pandas import DataFrame
from pandas import Series
import numpy as np
from dateutil.parser import parse


data=pd.read_csv('f:data.csv',header=None)
data[0]=data[0].apply(lambda x:parse(x))

data1=Series(np.array(data[1]),index=np.array(data[0]))
data2=data1.resample('H')
data2.replace(np.nan,0,inplace=True)

print type(data2)

print dir(data2)