Github user hhbyyh commented on a diff in the pull request:
https://github.com/apache/spark/pull/19337#discussion_r142854372
--- Diff:
mllib/src/main/scala/org/apache/spark/mllib/clustering/LDAOptimizer.scala ---
@@ -322,6 +326,13 @@ final class OnlineLDAOptimizer extends LDAOptimizer {
this
}
+ @Since("2.3.0")
+ def setEpsilon(epsilon: Double): this.type = {
+ require(epsilon> 0, s"LDA epsilon must be positive, but was set to
$epsilon")
--- End diff --
space after epsilon.
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