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DOC: Fixing EX01 - Added more examples (#53540)
* Added examples groupby * Removed decorator & added 'See Also' inside docstring * Added @substitution instead of repeating 'see_also'
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‎ci/code_checks.sh‎

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@@ -263,16 +263,6 @@ if [[ -z "$CHECK" || "$CHECK" == "docstrings" ]]; then
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pandas.core.window.ewm.ExponentialMovingWindow.cov \
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pandas.api.indexers.BaseIndexer \
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pandas.api.indexers.VariableOffsetWindowIndexer \
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pandas.core.groupby.DataFrameGroupBy.__iter__ \
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pandas.core.groupby.SeriesGroupBy.__iter__ \
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pandas.core.groupby.DataFrameGroupBy.groups \
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pandas.core.groupby.SeriesGroupBy.groups \
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pandas.core.groupby.DataFrameGroupBy.indices \
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pandas.core.groupby.SeriesGroupBy.indices \
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pandas.core.groupby.DataFrameGroupBy.get_group \
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pandas.core.groupby.SeriesGroupBy.get_group \
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pandas.core.groupby.DataFrameGroupBy.all \
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pandas.core.groupby.DataFrameGroupBy.any \
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pandas.core.groupby.DataFrameGroupBy.count \
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pandas.core.groupby.DataFrameGroupBy.cummax \
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pandas.core.groupby.DataFrameGroupBy.cummin \
@@ -293,8 +283,6 @@ if [[ -z "$CHECK" || "$CHECK" == "docstrings" ]]; then
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pandas.core.groupby.DataFrameGroupBy.std \
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pandas.core.groupby.DataFrameGroupBy.sum \
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pandas.core.groupby.DataFrameGroupBy.var \
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pandas.core.groupby.SeriesGroupBy.all \
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pandas.core.groupby.SeriesGroupBy.any \
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pandas.core.groupby.SeriesGroupBy.count \
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pandas.core.groupby.SeriesGroupBy.cummax \
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pandas.core.groupby.SeriesGroupBy.cummin \

‎pandas/core/groupby/groupby.py‎

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@@ -720,6 +720,33 @@ def __repr__(self) -> str:
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def groups(self) -> dict[Hashable, np.ndarray]:
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"""
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Dict {group name -> group labels}.
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Examples
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--------
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For SeriesGroupBy:
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>>> lst = ['a', 'a', 'b']
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>>> ser = pd.Series([1, 2, 3], index=lst)
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>>> ser
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a 1
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a 2
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b 3
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dtype: int64
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>>> ser.groupby(level=0).groups
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{'a': ['a', 'a'], 'b': ['b']}
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For DataFrameGroupBy:
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>>> data = [[1, 2, 3], [1, 5, 6], [7, 8, 9]]
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>>> df = pd.DataFrame(data, columns=["a", "b", "c"])
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>>> df
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a b c
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0 1 2 3
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1 1 5 6
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2 7 8 9
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>>> df.groupby(by=["a"]).groups
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{1: [0, 1], 7: [2]}
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"""
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return self.grouper.groups
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@@ -733,6 +760,34 @@ def ngroups(self) -> int:
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def indices(self) -> dict[Hashable, npt.NDArray[np.intp]]:
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"""
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Dict {group name -> group indices}.
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Examples
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--------
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For SeriesGroupBy:
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>>> lst = ['a', 'a', 'b']
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>>> ser = pd.Series([1, 2, 3], index=lst)
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>>> ser
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a 1
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a 2
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b 3
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dtype: int64
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>>> ser.groupby(level=0).indices
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{'a': array([0, 1]), 'b': array([2])}
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For DataFrameGroupBy:
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>>> data = [[1, 2, 3], [1, 5, 6], [7, 8, 9]]
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>>> df = pd.DataFrame(data, columns=["a", "b", "c"],
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... index=["owl", "toucan", "eagle"])
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>>> df
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a b c
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owl 1 2 3
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toucan 1 5 6
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eagle 7 8 9
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>>> df.groupby(by=["a"]).indices
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{1: array([0, 1]), 7: array([2])}
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"""
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return self.grouper.indices
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@@ -867,6 +922,38 @@ def get_group(self, name, obj=None) -> DataFrame | Series:
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Returns
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-------
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same type as obj
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Examples
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--------
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For SeriesGroupBy:
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>>> lst = ['a', 'a', 'b']
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>>> ser = pd.Series([1, 2, 3], index=lst)
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>>> ser
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a 1
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a 2
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b 3
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dtype: int64
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>>> ser.groupby(level=0).get_group("a")
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a 1
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a 2
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dtype: int64
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For DataFrameGroupBy:
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>>> data = [[1, 2, 3], [1, 5, 6], [7, 8, 9]]
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>>> df = pd.DataFrame(data, columns=["a", "b", "c"],
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... index=["owl", "toucan", "eagle"])
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>>> df
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a b c
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owl 1 2 3
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toucan 1 5 6
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eagle 7 8 9
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>>> df.groupby(by=["a"]).get_group(1)
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a b c
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owl 1 2 3
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toucan 1 5 6
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"""
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if obj is None:
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obj = self._selected_obj
@@ -886,6 +973,47 @@ def __iter__(self) -> Iterator[tuple[Hashable, NDFrameT]]:
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-------
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Generator yielding sequence of (name, subsetted object)
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for each group
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Examples
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--------
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For SeriesGroupBy:
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>>> lst = ['a', 'a', 'b']
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>>> ser = pd.Series([1, 2, 3], index=lst)
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>>> ser
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a 1
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a 2
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b 3
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dtype: int64
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>>> for x, y in ser.groupby(level=0):
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... print(f'{x}\\n{y}\\n')
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a
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a 1
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a 2
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dtype: int64
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b
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b 3
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dtype: int64
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For DataFrameGroupBy:
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>>> data = [[1, 2, 3], [1, 5, 6], [7, 8, 9]]
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>>> df = pd.DataFrame(data, columns=["a", "b", "c"])
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>>> df
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a b c
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0 1 2 3
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1 1 5 6
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2 7 8 9
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>>> for x, y in df.groupby(by=["a"]):
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... print(f'{x}\\n{y}\\n')
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(1,)
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a b c
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0 1 2 3
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1 1 5 6
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(7,)
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a b c
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2 7 8 9
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"""
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keys = self.keys
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level = self.level
@@ -1787,7 +1915,7 @@ def _obj_1d_constructor(self) -> Callable:
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@final
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@Substitution(name="groupby")
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@Appender(_common_see_also)
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@Substitution(see_also=_common_see_also)
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def any(self, skipna: bool = True):
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"""
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Return True if any value in the group is truthful, else False.
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Series or DataFrame
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DataFrame or Series of boolean values, where a value is True if any element
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is True within its respective group, False otherwise.
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%(see_also)s
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Examples
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--------
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For SeriesGroupBy:
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>>> lst = ['a', 'a', 'b']
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>>> ser = pd.Series([1, 2, 0], index=lst)
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>>> ser
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a 1
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a 2
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b 0
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dtype: int64
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>>> ser.groupby(level=0).any()
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a True
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b False
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dtype: bool
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For DataFrameGroupBy:
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>>> data = [[1, 0, 3], [1, 0, 6], [7, 1, 9]]
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>>> df = pd.DataFrame(data, columns=["a", "b", "c"],
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... index=["ostrich", "penguin", "parrot"])
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>>> df
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a b c
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ostrich 1 0 3
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penguin 1 0 6
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parrot 7 1 9
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>>> df.groupby(by=["a"]).any()
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b c
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a
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1 False True
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7 True True
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"""
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return self._cython_agg_general(
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"any",
@@ -1811,7 +1971,7 @@ def any(self, skipna: bool = True):
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18121972
@final
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@Substitution(name="groupby")
1814-
@Appender(_common_see_also)
1974+
@Substitution(see_also=_common_see_also)
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def all(self, skipna: bool = True):
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"""
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Return True if all values in the group are truthful, else False.
@@ -1826,6 +1986,39 @@ def all(self, skipna: bool = True):
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Series or DataFrame
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DataFrame or Series of boolean values, where a value is True if all elements
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are True within its respective group, False otherwise.
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%(see_also)s
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Examples
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--------
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For SeriesGroupBy:
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>>> lst = ['a', 'a', 'b']
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>>> ser = pd.Series([1, 2, 0], index=lst)
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>>> ser
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a 1
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a 2
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b 0
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dtype: int64
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>>> ser.groupby(level=0).all()
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a True
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b False
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dtype: bool
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For DataFrameGroupBy:
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>>> data = [[1, 0, 3], [1, 5, 6], [7, 8, 9]]
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>>> df = pd.DataFrame(data, columns=["a", "b", "c"],
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... index=["ostrich", "penguin", "parrot"])
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>>> df
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a b c
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ostrich 1 0 3
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penguin 1 5 6
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parrot 7 8 9
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>>> df.groupby(by=["a"]).all()
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b c
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a
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1 False True
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7 True True
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"""
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return self._cython_agg_general(
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"all",

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