bigframes.pandas.api.typing.SeriesGroupBy.nunique#

SeriesGroupBy.nunique() → Series[source]#

Return number of unique elements in the group.

Examples:

>>> lst = ['a', 'a', 'b', 'b']
>>> ser = bpd.Series([1, 2, 3, 3], index=lst)
>>> ser.groupby(level=0).nunique()
a    2
b    1
dtype: Int64