Get total of Pandas column

Question

Target  I have a Pandas data frame  as shown below  with multiple columns and would like to get the total of column  MyColumn     Data Frame - df   print df             X           MyColumn  Y              Z    0          A           84        13 0           69 0    1          B           76         77 0          127 0    2          C           28         69 0           16 0    3          D           28         28 0           31 0    4          E           19         20 0           85 0    5          F           84        193 0           70 0        My attempt   I have attempted to get the sum of the column using groupby and  sum     Total   df groupby  MyColumn   sum    print Total   This causes  the following error   TypeError   instancemethod  object has no attribute    getitem        Expected Output  I d have expected the output to be as followed   319   Or alternatively  I would like df to be edited with a new row entitled TOTAL containing the total               X           MyColumn  Y              Z    0          A           84        13 0           69 0    1          B           76         77 0          127 0    2          C           28         69 0           16 0    3          D           28         28 0           31 0    4          E           19         20 0           85 0    5          F           84        193 0           70 0    TOTAL                  319

User · Answer

Similar to getting the length of a dataframe  len df   the following worked for pandas and blaze   Total   sum df  MyColumn      or alternatively  Total   sum df MyColumn  print Total

User · Answer

As other option  you can do something like below   Group   Valuation   amount     0   BKB Tube    156     1   BKB Tube    143     2   BKB Tube    67     3   BAC Tube    176     4   BAC Tube    39     5   JDK Tube    75     6   JDK Tube    35     7   JDK Tube    155     8   ETH Tube    38     9   ETH Tube    56   Below script  you can use for above data  import pandas as pd     data   pd read csv  daata1 csv   bytreatment   data groupby  Group   bytreatment  amount   sum

User · Answer

There are two ways to sum of a column      dataset   pd read csv  data csv        1  sum dataset Column name       2  dataset  Column Name   sum     If there is any issue in this the please correct me

User · Answer

Another option you can go with here   df loc  Total    MyColumn     df MyColumn sum              X  MyColumn      Y       Z  0        A     84 0    13 0    69 0  1        B     76 0    77 0   127 0  2        C     28 0    69 0    16 0  3        D     28 0    28 0    31 0  4        E     19 0    20 0    85 0  5        F     84 0   193 0    70 0  Total  NaN    319 0     NaN     NaN     You can also use append   method   df append pd DataFrame df MyColumn sum    index     Total    columns   MyColumn           Update   In case you need to append sum for all numeric columns  you can do one of the followings   Use append to do this in a functional manner  doesn t change the original data frame      select numeric columns and calculate the sums sums   df select dtypes pd np number  sum   rename  total      append sums to the data frame df append sums            X  MyColumn      Y      Z  0        A      84 0   13 0   69 0  1        B      76 0   77 0  127 0  2        C      28 0   69 0   16 0  3        D      28 0   28 0   31 0  4        E      19 0   20 0   85 0  5        F      84 0  193 0   70 0  total  NaN     319 0  400 0  398 0   Use loc to mutate data frame in place   df loc  total     df select dtypes pd np number  sum   df           X  MyColumn      Y      Z  0        A      84 0   13 0   69 0  1        B      76 0   77 0  127 0  2        C      28 0   69 0   16 0  3        D      28 0   28 0   31 0  4        E      19 0   20 0   85 0  5        F      84 0  193 0   70 0  total  NaN     638 0  800 0  796 0

User · Answer

You should use sum   Total   df  MyColumn   sum   print  Total  319   Then you use loc with Series  in that case the index should be set as the same as the specific column you need to sum   df loc  Total     pd Series df  MyColumn   sum    index     MyColumn    print  df           X  MyColumn      Y      Z 0        A      84 0   13 0   69 0 1        B      76 0   77 0  127 0 2        C      28 0   69 0   16 0 3        D      28 0   28 0   31 0 4        E      19 0   20 0   85 0 5        F      84 0  193 0   70 0 Total  NaN     319 0    NaN    NaN   because if you pass scalar  the values of all rows will be filled   df loc  Total     df  MyColumn   sum   print  df           X  MyColumn      Y      Z 0        A        84   13 0   69 0 1        B        76   77 0  127 0 2        C        28   69 0   16 0 3        D        28   28 0   31 0 4        E        19   20 0   85 0 5        F        84  193 0   70 0 Total  319       319  319 0  319 0   Two other solutions are with at  and ix see the applications below   df at  Total    MyColumn     df  MyColumn   sum   print  df           X  MyColumn      Y      Z 0        A      84 0   13 0   69 0 1        B      76 0   77 0  127 0 2        C      28 0   69 0   16 0 3        D      28 0   28 0   31 0 4        E      19 0   20 0   85 0 5        F      84 0  193 0   70 0 Total  NaN     319 0    NaN    NaN     df ix  Total    MyColumn     df  MyColumn   sum   print  df           X  MyColumn      Y      Z 0        A      84 0   13 0   69 0 1        B      76 0   77 0  127 0 2        C      28 0   69 0   16 0 3        D      28 0   28 0   31 0 4        E      19 0   20 0   85 0 5        F      84 0  193 0   70 0 Total  NaN     319 0    NaN    NaN   Note  Since Pandas v0 20  ix has been deprecated  Use loc or iloc instead

[python] Get total of Pandas column

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