From 7007ad8f39f1d1e8952d0b961b6c7d9f18840f27 Mon Sep 17 00:00:00 2001
From: Xiao Yuan <yuanx749@gmail.com>
Date: Wed, 21 Sep 2022 01:43:14 +0800
Subject: [PATCH] BUG: Fix metadata propagation in df.corr and df.cov, GH28283
 (#48616)

* Add finalize to df.corr and df.cov

* Clean
---
 doc/source/whatsnew/v1.6.0.rst        | 5 +++++
 pandas/core/frame.py                  | 6 ++++--
 pandas/tests/generic/test_finalize.py | 6 +-----
 3 files changed, 10 insertions(+), 7 deletions(-)

diff --git a/doc/source/whatsnew/v1.6.0.rst b/doc/source/whatsnew/v1.6.0.rst
index 72cf6caec0c48..39752e8a9e750 100644
--- a/doc/source/whatsnew/v1.6.0.rst
+++ b/doc/source/whatsnew/v1.6.0.rst
@@ -258,6 +258,11 @@ Styler
 -
 -
 
+Metadata
+^^^^^^^^
+- Fixed metadata propagation in :meth:`DataFrame.corr` and :meth:`DataFrame.cov` (:issue:`28283`)
+-
+
 Other
 ^^^^^
 
diff --git a/pandas/core/frame.py b/pandas/core/frame.py
index edca6918368fa..5468406b2ea21 100644
--- a/pandas/core/frame.py
+++ b/pandas/core/frame.py
@@ -10356,7 +10356,8 @@ def corr(
                 f"'{method}' was supplied"
             )
 
-        return self._constructor(correl, index=idx, columns=cols)
+        result = self._constructor(correl, index=idx, columns=cols)
+        return result.__finalize__(self, method="corr")
 
     def cov(
         self,
@@ -10491,7 +10492,8 @@ def cov(
         else:
             base_cov = libalgos.nancorr(mat, cov=True, minp=min_periods)
 
-        return self._constructor(base_cov, index=idx, columns=cols)
+        result = self._constructor(base_cov, index=idx, columns=cols)
+        return result.__finalize__(self, method="cov")
 
     def corrwith(
         self,
diff --git a/pandas/tests/generic/test_finalize.py b/pandas/tests/generic/test_finalize.py
index af1a76a6263c7..3c40218ef9024 100644
--- a/pandas/tests/generic/test_finalize.py
+++ b/pandas/tests/generic/test_finalize.py
@@ -192,14 +192,10 @@
     pytest.param(
         (pd.DataFrame, frame_data, operator.methodcaller("round", 2)),
     ),
-    pytest.param(
-        (pd.DataFrame, frame_data, operator.methodcaller("corr")),
-        marks=not_implemented_mark,
-    ),
+    (pd.DataFrame, frame_data, operator.methodcaller("corr")),
     pytest.param(
         (pd.DataFrame, frame_data, operator.methodcaller("cov")),
         marks=[
-            not_implemented_mark,
             pytest.mark.filterwarnings("ignore::RuntimeWarning"),
         ],
     ),