def _get_window_indexer(self) -> GroupbyIndexer:
"""
Return an indexer class that will compute the window start and end bounds
Returns
-------
GroupbyIndexer
"""
window_indexer = GroupbyIndexer(
groupby_indicies=self._grouper.indices,
window_indexer=ExpandingIndexer,
)
return window_indexer
def _get_window_indexer(self, window: int) -> GroupbyIndexer:
"""
Return an indexer class that will compute the window start and end bounds
Parameters
----------
window : int
window size for FixedWindowIndexer (unused)
Returns
-------
GroupbyIndexer
"""
window_indexer = GroupbyIndexer(
groupby_indicies=self._groupby.indices,
window_indexer=ExpandingIndexer,
)
return window_indexer