Github user akopich commented on the issue:
https://github.com/apache/spark/pull/18924
Thank you, @hhbyyh.
I have augmented the example a bit: explicitly set random seed a nd chosen
online optimizer:
`val lda = new
LDA().setK(10).setMaxIter(10).setOptimizer("online").setSeed(13)`
But for some reason if I run it twice, the results are not the same. Is
that expected? branch-2.2 was used.
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