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#Group by Function df.groupby(‘Date‘)[[‘Date‘]].count() df.groupby(‘Date‘)[[‘Date‘]].sum() # if it can be sumable #Sort Function type(df[‘Date‘]) <class ‘pandas.core.series.Series‘> df[‘Date‘].sort_values() #View all types of each Column df.dtypes #Change Col Type to DateTime pd.to_datetime(df[‘Date‘])
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原文地址:http://www.cnblogs.com/kiddy/p/5166388.html