databricks.koalas.MultiIndex.append

MultiIndex.append(other: databricks.koalas.indexes.base.Index) → databricks.koalas.indexes.base.Index

Append a collection of Index options together.

Parameters
otherIndex
Returns
appendedIndex

Examples

>>> kidx = ks.Index([10, 5, 0, 5, 10, 5, 0, 10])
>>> kidx
Int64Index([10, 5, 0, 5, 10, 5, 0, 10], dtype='int64')
>>> kidx.append(kidx)
Int64Index([10, 5, 0, 5, 10, 5, 0, 10, 10, 5, 0, 5, 10, 5, 0, 10], dtype='int64')

Support for MiltiIndex

>>> kidx = ks.MultiIndex.from_tuples([('a', 'x'), ('b', 'y')])
>>> kidx  
MultiIndex([('a', 'x'),
            ('b', 'y')],
           )
>>> kidx.append(kidx)  
MultiIndex([('a', 'x'),
            ('b', 'y'),
            ('a', 'x'),
            ('b', 'y')],
           )