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How to create a df that gets sum of columns based on a groupby column?



The Next CEO of Stack Overflow
2019 Community Moderator ElectionCreate a new column based on two columns from two different dataframesHow to sum values grouped by two columns in pandasCreate new data frames from existing data frame based on unique column valuesLow silhouette coefficientShould I use pandas get_dummies and create additional columns or use my own encoding code that keeps 1 column?How to calculate Cumulative Sum with Groupby in Python?How to create a new column based on two other columns in Pandas?how to update column in data frame based on conditionPandas merge column duplicate and sum valueMultiple filtering pandas columns based on values in another column










0












$begingroup$


country year gender measure value0 ... value12
A 2000 1 vaccinated_at_month 2 ... 1
B 2000 1 vaccinated_at_month 13 ... 12
A 2000 0 vaccinated_at_month 4 ... 3
A 2000 9 vaccinated_at_month 5 ... 4
B 2000 0 walked_at_month 3 ... 13
C 2001 1 vaccinated_at_month 6 ... 5
C 2001 0 vaccinated_at_month 3 ... 2


I want to be able to remove the gender column and collapse all values into sums based on the previous categorical columns.



I have tried



df_new = df.groupby(['country', 'year', 'gender', 'measure'])['value0', ... 'value12'].apply(lambda x : x.astype(float).sum())


However, df_new still preserves the gender column. I am trying to get this outcome:



country year measure value0 ... value12
A 2000 vaccinated_at_month 11 (=2+4+5) ... 8 (=1+3+4)
B 2000 vaccinated_at_month 13 ... 12
B 2000 walked_at_month 3 ... 13
C 2001 vaccinated_at_month 9 (=6+3) ... 7 (=5+2)
C 2001 vaccinated_at_month 3 ... 2









share|improve this question











$endgroup$
















    0












    $begingroup$


    country year gender measure value0 ... value12
    A 2000 1 vaccinated_at_month 2 ... 1
    B 2000 1 vaccinated_at_month 13 ... 12
    A 2000 0 vaccinated_at_month 4 ... 3
    A 2000 9 vaccinated_at_month 5 ... 4
    B 2000 0 walked_at_month 3 ... 13
    C 2001 1 vaccinated_at_month 6 ... 5
    C 2001 0 vaccinated_at_month 3 ... 2


    I want to be able to remove the gender column and collapse all values into sums based on the previous categorical columns.



    I have tried



    df_new = df.groupby(['country', 'year', 'gender', 'measure'])['value0', ... 'value12'].apply(lambda x : x.astype(float).sum())


    However, df_new still preserves the gender column. I am trying to get this outcome:



    country year measure value0 ... value12
    A 2000 vaccinated_at_month 11 (=2+4+5) ... 8 (=1+3+4)
    B 2000 vaccinated_at_month 13 ... 12
    B 2000 walked_at_month 3 ... 13
    C 2001 vaccinated_at_month 9 (=6+3) ... 7 (=5+2)
    C 2001 vaccinated_at_month 3 ... 2









    share|improve this question











    $endgroup$














      0












      0








      0





      $begingroup$


      country year gender measure value0 ... value12
      A 2000 1 vaccinated_at_month 2 ... 1
      B 2000 1 vaccinated_at_month 13 ... 12
      A 2000 0 vaccinated_at_month 4 ... 3
      A 2000 9 vaccinated_at_month 5 ... 4
      B 2000 0 walked_at_month 3 ... 13
      C 2001 1 vaccinated_at_month 6 ... 5
      C 2001 0 vaccinated_at_month 3 ... 2


      I want to be able to remove the gender column and collapse all values into sums based on the previous categorical columns.



      I have tried



      df_new = df.groupby(['country', 'year', 'gender', 'measure'])['value0', ... 'value12'].apply(lambda x : x.astype(float).sum())


      However, df_new still preserves the gender column. I am trying to get this outcome:



      country year measure value0 ... value12
      A 2000 vaccinated_at_month 11 (=2+4+5) ... 8 (=1+3+4)
      B 2000 vaccinated_at_month 13 ... 12
      B 2000 walked_at_month 3 ... 13
      C 2001 vaccinated_at_month 9 (=6+3) ... 7 (=5+2)
      C 2001 vaccinated_at_month 3 ... 2









      share|improve this question











      $endgroup$




      country year gender measure value0 ... value12
      A 2000 1 vaccinated_at_month 2 ... 1
      B 2000 1 vaccinated_at_month 13 ... 12
      A 2000 0 vaccinated_at_month 4 ... 3
      A 2000 9 vaccinated_at_month 5 ... 4
      B 2000 0 walked_at_month 3 ... 13
      C 2001 1 vaccinated_at_month 6 ... 5
      C 2001 0 vaccinated_at_month 3 ... 2


      I want to be able to remove the gender column and collapse all values into sums based on the previous categorical columns.



      I have tried



      df_new = df.groupby(['country', 'year', 'gender', 'measure'])['value0', ... 'value12'].apply(lambda x : x.astype(float).sum())


      However, df_new still preserves the gender column. I am trying to get this outcome:



      country year measure value0 ... value12
      A 2000 vaccinated_at_month 11 (=2+4+5) ... 8 (=1+3+4)
      B 2000 vaccinated_at_month 13 ... 12
      B 2000 walked_at_month 3 ... 13
      C 2001 vaccinated_at_month 9 (=6+3) ... 7 (=5+2)
      C 2001 vaccinated_at_month 3 ... 2






      python pandas dataframe






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Mar 25 at 18:26









      Simon Larsson

      588112




      588112










      asked Mar 25 at 15:32









      user70182user70182

      41




      41




















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          0












          $begingroup$

          This question is more appropriate at Stackoverflow since it is more of a programming question.



          However, I think you almost got it working. Just remove gender from your groupby:



          df_new = df.groupby(['country', 'year', 'measure'])['value0', ... 'value12'].apply(lambda x : x.astype(float).sum())





          share|improve this answer









          $endgroup$













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            1 Answer
            1






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes









            0












            $begingroup$

            This question is more appropriate at Stackoverflow since it is more of a programming question.



            However, I think you almost got it working. Just remove gender from your groupby:



            df_new = df.groupby(['country', 'year', 'measure'])['value0', ... 'value12'].apply(lambda x : x.astype(float).sum())





            share|improve this answer









            $endgroup$

















              0












              $begingroup$

              This question is more appropriate at Stackoverflow since it is more of a programming question.



              However, I think you almost got it working. Just remove gender from your groupby:



              df_new = df.groupby(['country', 'year', 'measure'])['value0', ... 'value12'].apply(lambda x : x.astype(float).sum())





              share|improve this answer









              $endgroup$















                0












                0








                0





                $begingroup$

                This question is more appropriate at Stackoverflow since it is more of a programming question.



                However, I think you almost got it working. Just remove gender from your groupby:



                df_new = df.groupby(['country', 'year', 'measure'])['value0', ... 'value12'].apply(lambda x : x.astype(float).sum())





                share|improve this answer









                $endgroup$



                This question is more appropriate at Stackoverflow since it is more of a programming question.



                However, I think you almost got it working. Just remove gender from your groupby:



                df_new = df.groupby(['country', 'year', 'measure'])['value0', ... 'value12'].apply(lambda x : x.astype(float).sum())






                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Mar 25 at 16:46









                Simon LarssonSimon Larsson

                588112




                588112



























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