Evan Bennewies
Evan Bennewies
Programming language:Python
2021-06-17 13:40:44
0
Q:

pandas groupby count unique rows

Cute
Cute
Code: Python
2021-03-26 22:01:16 
df['column'].nunique()
3
Seitaridis
Seitaridis
Code: Python
2021-02-04 13:05:24 
df = df.groupby(by='domain', as_index=False).agg({'ID': pd.Series.nunique})
print(df)
    domain  ID
0       fb   1
1      ggl   1
2  twitter   2
3       vk   3
1
Caius Jard
Caius Jard
Code: Python
2021-03-26 21:59:27 
df.groupby('mID').agg(['count', 'size', 'nunique']).stack()


             dID  hID  uID
mID                       
A   count      5    5    5
    size       5    5    5
    nunique    3    5    5
B   count      2    2    2
    size       2    2    2
    nunique    2    2    2
C   count      1    1    1
    size       1    1    1
    nunique    1    1    1
2
Jan Doggen
Jan Doggen
Code: Python
2021-03-26 22:02:31 
df['hID'].nunique()
5
2
Sander
Sander
Code: Python
2021-03-26 22:03:02 
df.nunique()
1
Avishay28
Avishay28
Code: Python
2021-06-22 18:44:50 
ID, domain
123, 'vk.com'
123, 'vk.com'
123, 'twitter.com'
456, 'vk.com'
456, 'facebook.com'
456, 'vk.com'
456, 'google.com'
789, 'twitter.com'
789, 'vk.com'
0

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