count distinct values pandas code example

Example 1: 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()

Example 2: how to get distinct value in a column dataframe in python

df.column.unique()

Example 3: count unique values pandas

df['hID'].nunique()
5

Example 4: pandas count distinct values in a column

Series.value_counts(self, normalize=False, sort=True, ascending=False, bins=None, dropna=True)