import pandas as pd pd.merge(dataframe1,dataframe2,on='common_field',how='outer')
replace NaNdataframe1.fillna(0) #replace NaN to 0
transform from dataframe to Numpy arraynp.array(dataframe['column'])
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import pandas as pd pd.merge(dataframe1,dataframe2,on='common_field',how='outer')
replace NaNdataframe1.fillna(0) #replace NaN to 0
transform from dataframe to Numpy arraynp.array(dataframe['column'])
转载于:https://www.cnblogs.com/kiddy/p/4519060.html