pandas group by sum values code example
Example 1: pandas groupby sum
df.groupby(['att1', 'att2']).agg({'att1': "count", 'att3': "sum",'att4': 'mean'})Example 2: python groupby sum single columns
df.groupby(['A','C'], as_index=False)['B'].sum()df.groupby(['att1', 'att2']).agg({'att1': "count", 'att3': "sum",'att4': 'mean'})df.groupby(['A','C'], as_index=False)['B'].sum()