Re: Joining multiple rowMatrix

2014-09-18 Thread Xiangrui Meng
You can use CoGroupedRDD (http://spark.apache.org/docs/latest/api/scala/index.html#org.apache.spark.rdd.CoGroupedRDD) directly. -Xiangrui On Thu, Sep 18, 2014 at 7:09 AM, Debasish Das wrote: > Hi, > > I have some RowMatrices all with the same key (MatrixEntry.i, MatrixEntry.j) > and I would like

Joining multiple rowMatrix

2014-09-18 Thread Debasish Das
Hi, I have some RowMatrices all with the same key (MatrixEntry.i, MatrixEntry.j) and I would like to join multiple matrices to come up with a sqlTable for each key... What's the best way to do it ? Right now I am doing N joins if I want to combine data from N matrices which does not look quite r