Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/473#discussion_r11889136
--- Diff:
mllib/src/main/scala/org/apache/spark/mllib/tree/DecisionTree.scala ---
@@ -1120,7 +1120,7 @@ object DecisionTree extends Serializable with Logging
{
sc.textFile(dir).map { line =>
val parts = line.trim().split(",")
val label = parts(0).toDouble
- val features =
Vectors.dense(parts.slice(1,parts.length).map(_.toDouble))
+ val features = Vectors.dense(parts.tail.map(_.toDouble))
--- End diff --
by two arrays, i meant one in parts, and the other for the tail, and the
map. We should be able to skip 2 of them.
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