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Align DataFrame.apply signature with pandas #9275

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merged 2 commits into from
Sep 23, 2021
Merged

Align DataFrame.apply signature with pandas #9275

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f2bdcbf
update signature
brandon-b-miller Sep 22, 2021
9ccae14
Merge branch 'branch-21.10' into fea-update-apply-signature
brandon-b-miller Sep 22, 2021
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17 changes: 15 additions & 2 deletions python/cudf/cudf/core/dataframe.py
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Original file line number Diff line number Diff line change
Expand Up @@ -4742,7 +4742,9 @@ def query(self, expr, local_dict=None):
boolmask = queryutils.query_execute(self, expr, callenv)
return self._apply_boolean_mask(boolmask)

def apply(self, func, axis=1):
def apply(
self, func, axis=1, raw=False, result_type=None, args=(), **kwargs
):
"""
Apply a function along an axis of the DataFrame.

Expand All @@ -4756,12 +4758,17 @@ def apply(self, func, axis=1):
----------
func : function
Function to apply to each row.

axis : {0 or 'index', 1 or 'columns'}, default 0
Axis along which the function is applied:
* 0 or 'index': apply function to each column.
Note: axis=0 is not yet supported.
* 1 or 'columns': apply function to each row.
raw: bool, default False
Not yet supported
result_type: {'expand', 'reduce', 'broadcast', None}, default None
Not yet supported
args: tuple
Not yet supported

Examples
--------
Expand Down Expand Up @@ -4910,6 +4917,12 @@ def apply(self, func, axis=1):
raise ValueError(
"DataFrame.apply currently only supports row wise ops"
)
if raw:
raise ValueError("The `raw` kwarg is not yet supported.")
if result_type is not None:
raise ValueError("The `result_type` kwarg is not yet supported.")
if args or kwargs:
raise ValueError("args and kwargs are not yet supported.")

return cudf.Series(func(self))

Expand Down