Github user tgaloppo commented on a diff in the pull request:
https://github.com/apache/spark/pull/3981#discussion_r22738055
--- Diff:
mllib/src/test/scala/org/apache/spark/mllib/clustering/GMMExpectationMaximizationSuite.scala
---
@@ -35,12 +35,14 @@ class GMMExpectationMaximizationSuite extends FunSuite
with MLlibTestSparkContex
val Ew = 1.0
val Emu = Vectors.dense(5.0, 10.0)
val Esigma = Matrices.dense(2, 2, Array(2.0 / 3.0, -2.0 / 3.0, -2.0 /
3.0, 2.0 / 3.0))
-
- val gmm = new GaussianMixtureEM().setK(1).run(data)
-
- assert(gmm.weight(0) ~== Ew absTol 1E-5)
- assert(gmm.mu(0) ~== Emu absTol 1E-5)
- assert(gmm.sigma(0) ~== Esigma absTol 1E-5)
+
+ val seeds = Array(314589, 29032897, 50181, 494821, 4660)
+ seeds.foreach { seed =>
+ val gmm = new GaussianMixtureEM().setK(1).setSeed(seed).run(data)
+ assert(gmm.weight(0) ~== Ew absTol 1E-5)
+ assert(gmm.mu(0) ~== Emu absTol 1E-5)
+ assert(gmm.sigma(0) ~== Esigma absTol 1E-5)
+ }
--- End diff --
Got it!
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