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unique values in dataframe column count

By Friendly FlyFriendly Fly on Aug 20, 2020
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

Source: stackoverflow.com

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3

how to count unique values in a column dataframe in python

By Bewildered BarracudaBewildered Barracuda on May 30, 2020
dataframe.column.nunique()

Source: thispointer.com

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count unique values pandas

By Dark DuckDark Duck on May 28, 2020
df['hID'].nunique()
5

Source: stackoverflow.com

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pandas count distinct values in a column

By Fine FalconFine Falcon on Mar 04, 2020
Series.value_counts(self, normalize=False, sort=True, ascending=False, bins=None, dropna=True)

Source: www.w3resource.com

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pandas count unique values in column

By CaptainspockearsCaptainspockears on Sep 03, 2020
df.nunique()

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