Github user MLnick commented on a diff in the pull request:
https://github.com/apache/spark/pull/12207#discussion_r59026553
--- Diff: python/pyspark/sql/dataframe.py ---
@@ -1181,7 +1181,7 @@ def approxQuantile(self, col, probabilities,
relativeError):
Space-efficient Online Computation of Quantile Summaries]]
by Greenwald and Khanna.
- :param col: the name of the numerical column
+ :param cols: the name(s) of the numerical column(s)
--- End diff --
Not sure offhand on what the general consensus is on documenting multiple
potential input types. But perhaps we can specify that cols can be a single
column (str) or a list of col names.
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