It's returning excess kurtosis and not the fourth moment, strictly
speaking. I don't have docs in front of me to check but if that's not
documented it should be.
On Thu, Feb 4, 2016, 15:22 Arunkumar Pillai <arunkumar1...@gmail.com> wrote:
> Hi
>
> I have observed that kurtosis values coming from apache spark has a
> difference of 3.
>
> The value coming from excel and in R as same values(11.333) but the
> kurtosis value coming from spark1.6 differs by 3 (8.333).
>
> Please let me know if I'm doing something wrong.
>
> I'm executing via sqlcontext.sql("select kurtosis(columnname) from
> tablename)
>
> --
> Thanks and Regards
> Arun
>
