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[Minor][ML]Minor correction in the powerIterationSuite #21689

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[Minor][ML]Minor correction in the powerIterationSuite #21689

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7b52f1e
Minor correction in the powerIterationSuite
shahidki31 Jul 1, 2018
a591e4f
Modifications: Minor correction in the powerIterationSuite
shahidki31 Jul 4, 2018
6cee6f0
Minor correction in the powerIterationSuite
shahidki31 Jul 4, 2018
b02cae5
[Modifications]Minor correction in the powerIterationSuite
shahidki31 Jul 4, 2018
79447fa
checkStyle: Minor correction in the powerIterationSuite
shahidki31 Jul 4, 2018
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Modifications: Minor correction in the powerIterationSuite
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@shahidki31
shahidki31 committed Jul 4, 2018
commit a591e4fb755df1d10255cf1d4d916a4afa604442
20 changes: 14 additions & 6 deletions mllib/src/test/scala/org/apache/spark/ml/clustering/PowerIterationClusteringSuite.scala
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Expand Up @@ -78,25 +78,33 @@ class PowerIterationClusteringSuite extends SparkFunSuite
.setMaxIter(40)
.setWeightCol("weight")
.assignClusters(data)
.select("id", "cluster")
.as[(Long, Int)]
.collect()

val predictions = Array.fill(2)(mutable.Set.empty[Long])
assignments.select("id", "cluster").collect().foreach {
case Row(id: Long, cluster: Integer) => predictions(cluster) += id

assignments.foreach{
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@srowen srowen Jul 4, 2018

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This might fail the style checker -- need a space before the brace. Looks good otherwise. Let's see if the test passes.

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@shahidki31 shahidki31 Jul 4, 2018

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I have added the space. Thank you.

case (id, cluster) => predictions(cluster) += id
}
assert(predictions.toSet == Set((0 until n1).toSet, (n1 until n).toSet))

assert(predictions.toSet === Set((0 until n1).toSet, (n1 until n).toSet))

val assignments2 = new PowerIterationClustering()
.setK(2)
.setMaxIter(10)
.setInitMode("degree")
.setWeightCol("weight")
.assignClusters(data)
.select("id", "cluster")
.as[(Long, Int)]
.collect()

val predictions2 = Array.fill(2)(mutable.Set.empty[Long])
assignments2.select("id", "cluster").collect().foreach {
case Row(id: Long, cluster: Integer) => predictions2(cluster) += id
assignments2.foreach {
case (id, cluster) => predictions2(cluster) += id
}
assert(predictions2.toSet == Set((0 until n1).toSet, (n1 until n).toSet))
assert(predictions2.toSet === Set((0 until n1).toSet, (n1 until n).toSet))
}

test("supported input types") {
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