Github user mateiz commented on a diff in the pull request:
https://github.com/apache/spark/pull/685#discussion_r12502533
--- Diff: mllib/src/main/scala/org/apache/spark/mllib/linalg/Vectors.scala
---
@@ -171,8 +192,11 @@ class SparseVector(
val indices: Array[Int],
val values: Array[Double]) extends Vector {
+ require(indices.length == values.length)
+
override def toString: String = {
- "(" + size + "," + indices.zip(values).mkString("[", "," ,"]") + ")"
+ Seq(size, indices.mkString("[", ",", "]"), values.mkString("[", ",",
"]"))
+ .mkString("(", ",", ")")
--- End diff --
Small nit, it would probably be easier to write
```
"(%s,%s,%s)".format(size, indices.mkString("[", ",", "]"),
values.mkString("[", ",", "]"))
```
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