datetime - python how to sum together all values within a time interval in datetime64? -

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i have pandas dataframe looks like:

 payment_method  dcash_t3m  dcash_t3m_3d  paypal  unknown  combined  day_name                                                            2013-08-27              0             0       0        1         1  2013-08-28              0             0       0        4         4  2013-08-29              0             0       0       17        17  2013-08-30              0             0       0        4         4  2013-09-02              0             0       0        3         3  2013-09-03              0             0       0        1         1  2013-09-04              0             0       0        3         3  2013-09-05              0             0       0        1         1  2013-09-06              0             0       0        5         5  2013-09-09              0             0       0        2         2  2013-09-10              0             0       0        5         5  2013-09-11              0             0       0       18        18  2013-09-12              0             0       0        6         6  2013-09-13              0             0       0       13        13  2013-09-16              0             0       0       19        19  .....

i sum days in same week have new row each week sum. need month

thanks.

this df.resample about.

as long have proper time-series index.

try df.resample('w', how=sum) weekly, df.resample('m', how=sum) monthly.


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