Github user srowen commented on a diff in the pull request:
https://github.com/apache/spark/pull/5855#discussion_r29541441
--- Diff: mllib/src/main/scala/org/apache/spark/mllib/rdd/SlidingRDD.scala
---
@@ -44,15 +44,16 @@ class SlidingRDDPartition[T](val idx: Int, val prev:
Partition, val tail: Seq[T]
* @see [[org.apache.spark.mllib.rdd.RDDFunctions#sliding]]
*/
private[mllib]
-class SlidingRDD[T: ClassTag](@transient val parent: RDD[T], val
windowSize: Int)
+class SlidingRDD[T: ClassTag](@transient val parent: RDD[T], val
windowSize: Int, val step: Int)
extends RDD[Array[T]](parent) {
- require(windowSize > 1, s"Window size must be greater than 1, but got
$windowSize.")
+ //require(windowSize > 1, s"Window size must be greater than 1, but got
$windowSize.")
--- End diff --
Why wouldn't this be required anymore?
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