Github user srowen commented on a diff in the pull request:
https://github.com/apache/spark/pull/20016#discussion_r157756696
--- Diff:
examples/src/main/scala/org/apache/spark/examples/LocalFileLR.scala ---
@@ -58,10 +58,10 @@ object LocalFileLR {
// Initialize w to a random value
val w = DenseVector.fill(D) {2 * rand.nextDouble - 1}
- println("Initial w: " + w)
+ println(s"Initial w: ${w}")
--- End diff --
You can just write `$w` in cases like this
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