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https://issues.apache.org/jira/browse/SPARK-10045?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14934268#comment-14934268
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Narine Kokhlikyan commented on SPARK-10045:
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Hi everyone,
how about standard deviation, variance, quantiles and other statistical
functions?
We can get stddev from summary, but I'm not sure that it is the right way to
go. I was thinking that there should be methods like stddev(), var() ... etc
which we could explicitly call from DataFrame API.
Thanks,
Narine
> Add support for DataFrameStatFunctions in SparkR
> ------------------------------------------------
>
> Key: SPARK-10045
> URL: https://issues.apache.org/jira/browse/SPARK-10045
> Project: Spark
> Issue Type: New Feature
> Components: SparkR
> Reporter: Sun Rui
>
> The stat functions are defined in
> http://spark.apache.org/docs/latest/api/scala/index.html#org.apache.spark.sql.DataFrameStatFunctions.
> Currently only crosstab() is supported.
> Functions to be supported include:
> corr, cov, freqItems
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