count unique pandas
df['column'].nunique()pandas groupby column count distinct values
# Pandas group by a column looking at the count unique/count distinct values of another column
df.groupby('param')['group'].nunique()pandas groupby count unique rows
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 3Copyright © 2021 Codeinu
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