[GitHub] [spark] HyukjinKwon commented on a change in pull request #23946: [SPARK-26860][PySpark] [SparkR] Fix for RangeBetween and RowsBetween docs to be in sync with spark documentation

[GitBox <gi...@apache.org>]

HyukjinKwon commented on a change in pull request #23946: [SPARK-26860][PySpark] [SparkR] Fix for RangeBetween and RowsBetween docs to be in sync with spark documentation
URL: https://github.com/apache/spark/pull/23946#discussion_r262740577
 
 

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 File path: python/pyspark/sql/window.py
 ##########
 @@ -97,6 +97,33 @@ def rowsBetween(start, end):
         and ``Window.currentRow`` to specify special boundary values, rather than using integral
         values directly.
 
+        A row based boundary is based on the position of the row within the partition.
+        An offset indicates the number of rows above or below the current row, the frame for the
+        current row starts or ends. For instance, given a row based sliding frame with a lower bound
+        offset of -1 and a upper bound offset of +2. The frame for row with index 5 would range from
+        index 4 to index 6.
+        """
+        # from pyspark.sql import Window
 
 Review comment:
   @jagadesh-kiran why is it commented? It should be started with `>>>` to make it a proper [doctest](https://docs.python.org/2/library/doctest.html).

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