Answers for "how to find unique values in a pandas column"

2

get list of unique values in pandas column

a = df['column name'].unique() #returns a list of unique values
Posted by: Guest on March-29-2021
1

get count of unique values in column pandas

df = df.groupby('domain')['ID'].nunique()

print (df)
domain
'facebook.com'    1
'google.com'      1
'twitter.com'     2
'vk.com'          3
Name: ID, dtype: int64
Posted by: Guest on May-28-2020
0

dataframe number of unique rows

1
# get the unique values (rows) by retaining last row
2
df.drop_duplicates(keep='last')
Posted by: Guest on September-28-2020

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