摘要:
1 import pandas as pd 2 import numpy as np 3 s = pd.Series([1, 3, 6, np.nan, 44, 1]) 4 5 df= pd.DataFrame(np.random.random((4,5))) 6 7 # data frame 常用属性 8 df.dtypes 9 df.index 10... 阅读全文
posted @ 2017-02-02 15:06
肉鹅阿笨
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