pandas.Index.join¶
- final Index.join(other, how='left', level=None, return_indexers=False, sort=False)[source]¶
 Compute join_index and indexers to conform data structures to the new index.
- Parameters
 - otherIndex
 - how{‘left’, ‘right’, ‘inner’, ‘outer’}
 - levelint or level name, default None
 - return_indexersbool, default False
 - sortbool, default False
 Sort the join keys lexicographically in the result Index. If False, the order of the join keys depends on the join type (how keyword).
- Returns
 - join_index, (left_indexer, right_indexer)