wayneguow commented on code in PR #47343:
URL: https://github.com/apache/spark/pull/47343#discussion_r1683706137
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python/pyspark/sql/functions/builtin.py:
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@@ -3671,16 +3671,84 @@ def regr_avgx(y: "ColumnOrName", x: "ColumnOrName") ->
Column:
Examples
--------
- >>> from pyspark.sql import functions as sf
- >>> x = (sf.col("id") % 3).alias("x")
- >>> y = (sf.randn(42) + x * 10).alias("y")
- >>> spark.range(0, 1000, 1, 1).select(x, y).select(
- ... sf.regr_avgx("y", "x"), sf.avg("x")
- ... ).show()
+ Example 1: All paris are non-null
+
+ >>> import pyspark.sql.functions as sf
+ >>> from pyspark.sql.types import IntegerType, StructField, StructType
+ >>> schema = StructType([
+ ... StructField('y', IntegerType(), True),
+ ... StructField('x', IntegerType(), True)
+ ... ])
+ >>> df = spark.createDataFrame([(1, 2), (2, 2), (2, 3), (2, 4)], schema)
Review Comment:
All suggestions received, let me optimize it.
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