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cudf.DataFrame.scatter_by_map#

DataFrame.scatter_by_map( map_index, map_size: int | None = None, keep_index: bool = True, debug: bool = False, ) → list[Self][source]#

Scatter to a list of dataframes.

Uses map_index to determine the destination of each row of the original DataFrame.

Parameters:

map_indexSeries, str or list-like: Scatter assignment for each row
map_sizeint: Length of output list. Must be >= uniques in map_index
keep_indexbool: Conserve original index values for each row

Returns:

A list of cudf.DataFrame objects.

Raises:

ValueError: If the map_index has invalid entries (not all in [0, num_partitions)).