cudf.DataFrame.nunique

DataFrame.nunique(axis=0, dropna: bool = True) → Series

Count number of distinct elements in specified axis. Return Series with number of distinct elements. Can ignore NaN values.

Parameters:

axis{0 or ‘index’, 1 or ‘columns’}, default 0

The axis to use. 0 or ‘index’ for row-wise, 1 or ‘columns’ for column-wise.

dropnabool, default True

Don’t include NaN in the counts.

Returns:

Series

Examples

>>> import cudf
>>> df = cudf.DataFrame({'A': [4, 5, 6], 'B': [4, 1, 1]})
>>> df.nunique()
A    3
B    2
dtype: int64