Need to user univariate summary stats

[Arunkumar Pillai <ar...@gmail.com>]

Hi

I'm currently using query

sqlContext.sql("SELECT MAX(variablesArray) FROM " + tableName)

to extract mean max min.
is there any better  optimized way ?

In the example i saw df.groupBy("key").agg(skewness("a"), kurtosis("a"))


But i don't have key anywhere in the data.

How to extract the univariate summary stats from df. please help

-- 
Thanks and Regards
        Arun

RE: Need to user univariate summary stats

[Lohith Samaga M <Lo...@mphasis.com>]

Hi Arun,
                You can do df.agg(max(,,), min(..)).


Best regards / Mit freundlichen Grüßen / Sincères salutations
M. Lohith Samaga

From: Arunkumar Pillai [mailto:arunkumar1111@gmail.com]
Sent: Thursday, February 04, 2016 14.53
To: user@spark.apache.org
Subject: Need to user univariate summary stats

Hi

I'm currently using query

sqlContext.sql("SELECT MAX(variablesArray) FROM " + tableName)

to extract mean max min.
is there any better  optimized way ?


In the example i saw df.groupBy("key").agg(skewness("a"), kurtosis("a"))

But i don't have key anywhere in the data.

How to extract the univariate summary stats from df. please help

--
Thanks and Regards
        Arun
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