python常用代码汇总

Posted 2020-10-28 bawu

1、生成dataframe数据

import pandas as pdimport numpy as np
from pandas import Series,DataFrame
df=pd.DataFrame(np.arange(16).reshape(4,4),index=list(‘abcd‘),columns=list(‘xyzm‘))
df
Out[9]: 
    x   y   z   m
a   0   1   2   3
b   4   5   6   7
c   8   9  10  11
d  12  13  14  15

2、