RDD is a set of data rows (in your case numbers), there is no meaning for the order of the items. What exactly are you trying to accomplish?
*Romi Kuntsman*, *Big Data Engineer* http://www.totango.com On Mon, Sep 21, 2015 at 2:29 PM, Zhiliang Zhu <zchl.j...@yahoo.com.invalid> wrote: > Dear , > > I have took lots of days to think into this issue, however, without any > success... > I shall appreciate your all kind help. > > There is an RDD<int> rdd1, I would like get a new RDD<int> rdd2, each row > in rdd2[ i ] = rdd1[ i ] - rdd[i - 1] . > What kinds of API or function would I use... > > > Thanks very much! > John > >
