xinrong-meng commented on code in PR #37756:
URL: https://github.com/apache/spark/pull/37756#discussion_r961275433
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python/pyspark/pandas/tests/test_groupby.py:
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@@ -3055,6 +3065,17 @@ def test_ddof(self):
psdf.groupby("a")["b"].var(ddof=ddof).sort_index(),
xinrong-meng commented on code in PR #37756:
URL: https://github.com/apache/spark/pull/37756#discussion_r961275185
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python/pyspark/pandas/generic.py:
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@@ -2189,7 +2189,7 @@ def std(psser: "Series") -> Column:
return F.stddev_samp(spark_column)
xinrong-meng commented on code in PR #37756:
URL: https://github.com/apache/spark/pull/37756#discussion_r961271308
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python/pyspark/pandas/groupby.py:
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@@ -827,6 +827,76 @@ def mad(self) -> FrameLike:
return self._prepare_return(DataFrame(internal))
+def
