[GitHub] [arrow-datafusion-python] viirya commented on a diff in pull request #499: add regr_* functions

["viirya (via GitHub)" <gi...@apache.org>]

viirya commented on code in PR #499:
URL: https://github.com/apache/arrow-datafusion-python/pull/499#discussion_r1331884878


##########
datafusion/tests/test_functions.py:
##########
@@ -467,3 +467,25 @@ def test_case(df):
     assert result.column(0) == pa.array([10, 8, 8])
     assert result.column(1) == pa.array(["Hola", "Mundo", "!!"])
     assert result.column(2) == pa.array(["Hola", "Mundo", None])
+
+
+def test_regr_funcs(df):
+    # test case base on

Review Comment:
   ```suggestion
       # test case based on
   ```



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