there is matrix add API, might map rdd2 each row element to be negative , then
make rdd1 and rdd2 and call add ?
Or some more ways ...
On Wednesday, September 23, 2015 3:11 PM, Zhiliang Zhu
<zchl.j...@yahoo.com> wrote:
Hi All,
There are two RDDs : RDD<Array<float>> rdd1, and RDD<Array<float>> rdd2,that
is to say, rdd1 and rdd2 are similar with DataFrame, or Matrix with same row
number and column number.
I would like to get RDD<Array<float>> rdd3, each element in rdd3 is the
subtract between rdd1 and rdd2 of thesame position, which is similar Matrix
subtract:rdd3<i, j> = rdd1<i, j> - rdd2<i, j> ...
It seemed very difficult to operate this kinds of matrix arithmetic, even is
about add, subtract, multiple , diff etc...
I shall appreciate your help very much~~Zhiliang
