Answers for "python count by group"

5

group by count dataframe

df.groupby(['col1', 'col2']).size().reset_index(name='counts')
Posted by: Guest on February-24-2020
0

pandas groupby counts

df[['col1', 'col2', 'col3', 'col4']].groupby(['col1', 'col2']).agg(['mean', 'count'])
Posted by: Guest on November-20-2020

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