/Python/Find sum of values in a column that corresponds to unique vallues in another coulmn python

Find sum of values in a column that corresponds to unique vallues in another coulmn python

group = df.groupby('author')

df2 = group.apply(lambda x: x['subreddit'].unique())

# Alternatively, same thing as a one liner:
# df2 = df.groupby('author').apply(lambda x: x['subreddit'].unique())

Source: stackoverflow.com

Similar codes

2 votes326 views1 answer
Python how to unnest a nested list
Python
3 votes334 views1 answer
Join two set in python
Python
1 vote370 views1 answer
Elif in django template
Python Django
0 vote313 views1 answer
Concatenação de Strings
Python
2 votes332 views2 answers
Null=true django
Python Django
0 vote302 views1 answer
Convert pb to tb with python
Python
10 votes323 views4 answers
Python multiply all elements in list
Python
8 votes322 views1 answer
Créer des variable dynamiques python
Python
0 vote322 views1 answer
Python format string with list
Python
27 votes338 views5 answers
Pretty json python
Python