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Add column_offset to explode #59238

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Add column_offset to explode #59238

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11 changes: 10 additions & 1 deletion pandas/core/series.py
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Original file line number Diff line number Diff line change
Expand Up @@ -4083,7 +4083,9 @@ def reorder_levels(self, order: Sequence[Level]) -> Series:
result.index = result.index.reorder_levels(order)
return result

def explode(self, ignore_index: bool = False) -> Series:
def explode(
self, ignore_index: bool = False, column_offset: bool = False
) -> Series:
"""
Transform each element of a list-like to a row.

Expand All @@ -4092,6 +4094,9 @@ def explode(self, ignore_index: bool = False) -> Series:
ignore_index : bool, default False
If True, the resulting index will be labeled 0, 1, …, n - 1.

column_offset : bool, default False
If True, the resulting index will be labeled row offset with column offset.

Returns
-------
Series
Expand Down Expand Up @@ -4149,6 +4154,10 @@ def explode(self, ignore_index: bool = False) -> Series:
else:
index = self.index.repeat(counts)

if column_offset:
columns = [item for count in counts for item in range(count)]
index = MultiIndex.from_arrays([index, columns])

return self._constructor(values, index=index, name=self.name, copy=False)

def unstack(
Expand Down