Hello, CoordinateMatrix is in its infancy, and right now is only a placeholder.
To get/set the value at (i,j), you should map the entries rdd using the usual rdd map operation, and change the relevant entries. To get the values on a specific row, you can call toIndexedRowMatrix(), which returns a RowMatrix <https://github.com/apache/spark/blob/master/mllib/src/main/scala/org/apache/spark/mllib/linalg/distributed/IndexedRowMatrix.scala> with indices. Best, Reza On Tue, Oct 14, 2014 at 1:18 PM, ll <duy.huynh....@gmail.com> wrote: > after creating a coordinate matrix from my rdd[matrixentry]... > > 1. how can i get/query the value at coordiate (i, j)? > > 2. how can i set/update the value at coordiate (i, j)? > > 3. how can i get all the values on a specific row i, ideally as a vector? > > thanks! > > > > > -- > View this message in context: > http://apache-spark-user-list.1001560.n3.nabble.com/mllib-CoordinateMatrix-tp16412.html > Sent from the Apache Spark User List mailing list archive at Nabble.com. > > --------------------------------------------------------------------- > To unsubscribe, e-mail: user-unsubscr...@spark.apache.org > For additional commands, e-mail: user-h...@spark.apache.org > >
