Hi, all. How can I add a Vector to another one?
scala> val a = Vectors.sparse(20, Seq((1,1.0), (2,2.0))) a: org.apache.spark.ml.linalg.Vector = (20,[1,2],[1.0,2.0]) scala> val b = Vectors.sparse(20, Seq((2,2.0), (3,3.0))) b: org.apache.spark.ml.linalg.Vector = (20,[2,3],[2.0,3.0]) scala> a + b <console>:38: error: type mismatch; found : org.apache.spark.ml.linalg.Vector required: String a + b ^