group by pandas count

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showing results for - "group by pandas count"
Ilan
06 Jun 2020
1In [12]: df.groupby(["item", "color"])["id"].count().reset_index(name="count")
2Out[12]:
3    item  color  count
40    car  black      2
51  truck   blue      1
62  truck    red      2
source
Guillermo
05 Jan 2021
1df.groupby(['col1', 'col2']).size().reset_index(name='counts')
source
Flavie
31 Nov 2019
1df.groupby(['col1','col2']).size()
source
Anna
27 May 2019
1df[['col1', 'col2', 'col3', 'col4']].groupby(['col1', 'col2']).agg(['mean', 'count'])
2
source
Mads
04 May 2016
1$count = Reserve::groupBy('day')->count();
source
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