Series.
unstack
Unstack, a.k.a. pivot, Series with MultiIndex to produce DataFrame. The level involved will automatically get sorted.
Level(s) to unstack, can pass level name.
Unstacked Series.
Notes
Unlike pandas, Koalas doesn’t check whether an index is duplicated or not because the checking of duplicated index requires scanning whole data which can be quite expensive.
Examples
>>> s = ks.Series([1, 2, 3, 4], ... index=pd.MultiIndex.from_product([['one', 'two'], ... ['a', 'b']])) >>> s one a 1 b 2 two a 3 b 4 dtype: int64
>>> s.unstack(level=-1).sort_index() a b one 1 2 two 3 4
>>> s.unstack(level=0).sort_index() one two a 1 3 b 2 4