Github user HyukjinKwon commented on a diff in the pull request:
https://github.com/apache/spark/pull/12135#discussion_r99064944
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/DataFrameStatFunctions.scala ---
@@ -75,13 +76,43 @@ final class DataFrameStatFunctions private[sql](df:
DataFrame) {
}
/**
+ * Calculates the approximate quantiles of numerical columns of a
DataFrame.
+ * @see [[DataFrameStatsFunctions.approxQuantile(col:Str*
approxQuantile]] for
+ * detailed description.
+ *
+ * Note that rows containing any null or NaN values values will be
removed before
+ * calculation.
+ * @param cols the names of the numerical columns
+ * @param probabilities a list of quantile probabilities
+ * Each number must belong to [0, 1].
+ * For example 0 is the minimum, 0.5 is the median, 1 is the maximum.
+ * @param relativeError The relative target precision to achieve (>= 0).
--- End diff --
Yea.. so, kindly @jkbradley opened a JIRA here -
http://issues.apache.org/jira/browse/SPARK-18692
Actually, they are errors that make documentation building failed in
javadoc8. I and many guys had a hard time to figure that out a good way AKAIK
(honestly, I would like to say that I have tried all the combination I could
think) and it kind of ended up with the one above.. as we are anyway going to
drop Java 7 support in near future up to my knowledge.
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