Github user MLnick commented on a diff in the pull request: https://github.com/apache/spark/pull/12207#discussion_r59026778 --- 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 -- Yup, I see e.g. https://github.com/apache/spark/pull/12207/files#diff-6fc344560230bf0ef711bb9b5573f1faR1092 has some type info on possible info types.
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