Answers for "count unique values in pandas dataframe column"

12

return count of unique values pandas

#TO count repetition of each unique values(to find How many times the same-
# unique value is appearing in the data)

item_counts = df["Your_Column"].value_counts()
#Returns Dictionary => {"Value_name" : number_of_appearences}
Posted by: Guest on November-18-2020
1

values of unique from dataframe with count

data = df.groupby('ColumnName')['IDColumnName'].nunique()
print(data)
Posted by: Guest on November-07-2020
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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