浅谈python的dataframe与series的创建方法


						如下所示：





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

import numpy as np

import pandas as pd



def main():

 s = pd.Series([i*2 for i in range(1,11)])

 print type(s)

 print (s)



 dates = pd.date_range("20170301",periods=8)

 df = pd.DataFrame(np.random.randn(8,5),index=dates,columns = list("ABCDE"))

 print df



if __name__ == '__main__':

 main()





结果如下：





D:\Anaconda2\python.exe E:/pypractice/DataAnalysis/pandasTest.py

<class 'pandas.core.series.Series'>

0  2

1  4

2  6

3  8

4 10

5 12

6 14

7 16

8 18

9 20

dtype: int64

     A   B   C   D   E

2017-03-01 -0.746429 -0.540836 1.884101 0.607853 -0.367707

2017-03-02 1.172848 -0.482583 0.175146 -0.181268 -1.304475

2017-03-03 -0.416664 1.784968 1.767710 -1.157681 -0.909744

2017-03-04 -0.830197 -0.282451 0.543764 0.900877 0.553631

2017-03-05 -0.614170 -0.371306 0.553044 -0.054903 1.322286

2017-03-06 0.276449 -0.815241 -0.687530 0.514781 -0.823963

2017-03-07 0.939306 0.494661 -0.342454 -0.125811 -1.555909

2017-03-08 0.204852 0.006475 -0.625082 1.012985 0.447710





Process finished with exit code 0







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