Perhaps this email reference may be able to help from a DataFrame perspective: http://mail-archives.apache.org/mod_mbox/incubator-spark-user/201503.mbox/%3CCALte62ztepahF=5hk9rcfbnyk4z43wkcq4fkdcbwmgf_3_o...@mail.gmail.com%3E
On Wed, Mar 25, 2015 at 7:29 PM Haopu Wang <hw...@qilinsoft.com> wrote: > Hi, > > > > I have a DataFrame object and I want to do types of aggregations like > count, sum, variance, stddev, etc. > > > > DataFrame has DSL to do simple aggregations like count and sum. > > > > How about variance and stddev? > > > > Thank you for any suggestions! > > >
