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BUG: Fix .rolling().mean() reassignment returning NaNs (pandas-dev#61841) Bug Window rolling, ewma, expanding
#61852 by abujabarmubarak was closed Jul 25, 2025 Loading…
Backport PR #55920 on branch 2.1.x (Fix off-by-one in aggregations) Segfault Non-Recoverable Error Window rolling, ewma, expanding
Backport PR #55173 on branch 2.1.x (BUG: .rolling() returns incorrect values when ts index is not nano seconds) Bug Non-Nano datetime64/timedelta64 with non-nanosecond resolution Sprints Sprint Pull Requests Window rolling, ewma, expanding
Backport PR #56370 on branch 2.2.x (BUG: rolling with datetime ArrowDtype) Arrow pyarrow functionality Datetime Datetime data dtype Window rolling, ewma, expanding
Backport PR #43052 on branch 1.3.x (REGR: window ewm slowdown) Performance Memory or execution speed performance Regression Functionality that used to work in a prior pandas version Window rolling, ewma, expanding
Backport PR #43854 on branch 1.3.x (REGR: RollingGroupby.corr producing incorrect results) Bug Groupby Regression Functionality that used to work in a prior pandas version Window rolling, ewma, expanding
TST: Move a consistency ewm test to test_ewm.py Testing pandas testing functions or related to the test suite Window rolling, ewma, expanding
Backport PR #44032 on branch 1.3.x ([PERF] fixing memory leak in aggregation.pyx) Performance Memory or execution speed performance Window rolling, ewma, expanding
Backport PR #43291: BUG: Fixes to FixedForwardWindowIndexer and GroupbyIndexer (#43267) Groupby Segfault Non-Recoverable Error Window rolling, ewma, expanding
TST: Move some window/moments tests to test_ewm Testing pandas testing functions or related to the test suite Window rolling, ewma, expanding
Backport PR #44824 on branch 1.3.x (BUG: Fix regression in groupby.rolling.corr/cov when other is same size as each group) Regression Functionality that used to work in a prior pandas version Window rolling, ewma, expanding
TST: Move remaining ewm tests to window/ Testing pandas testing functions or related to the test suite Window rolling, ewma, expanding
DOC: Clarify decay argument validation in ewm when times is provided Docs Enhancement Window rolling, ewma, expanding
Backport PR #45925 on branch 1.4.x (BUG: rolling(axis=1).apply() raising ValueError) Window rolling, ewma, expanding
Backport PR #47078 on branch 1.4.x (REGR: Raise NotImplementedError for agg with axis=1 and multiple funcs) Apply Apply, Aggregate, Transform, Map Bug Groupby Regression Functionality that used to work in a prior pandas version Resample resample method Window rolling, ewma, expanding
Backport PR #49322 on branch 1.5.x (DOC: Fix typo in DataFrame.rolling) Docs Window rolling, ewma, expanding
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