diff options
-rw-r--r-- | mllib/src/main/scala/org/apache/spark/mllib/stat/test/ChiSqTest.scala | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/mllib/src/main/scala/org/apache/spark/mllib/stat/test/ChiSqTest.scala b/mllib/src/main/scala/org/apache/spark/mllib/stat/test/ChiSqTest.scala index f22f2df320..4a3fb06469 100644 --- a/mllib/src/main/scala/org/apache/spark/mllib/stat/test/ChiSqTest.scala +++ b/mllib/src/main/scala/org/apache/spark/mllib/stat/test/ChiSqTest.scala @@ -109,7 +109,9 @@ private[stat] object ChiSqTest extends Logging { } i += 1 distinctLabels += label - features.toArray.view.zipWithIndex.slice(startCol, endCol).map { case (feature, col) => + val brzFeatures = features.toBreeze + (startCol until endCol).map { col => + val feature = brzFeatures(col) allDistinctFeatures(col) += feature (col, feature, label) } @@ -122,7 +124,7 @@ private[stat] object ChiSqTest extends Logging { pairCounts.keys.filter(_._1 == startCol).map(_._3).toArray.distinct.zipWithIndex.toMap } val numLabels = labels.size - pairCounts.keys.groupBy(_._1).map { case (col, keys) => + pairCounts.keys.groupBy(_._1).foreach { case (col, keys) => val features = keys.map(_._2).toArray.distinct.zipWithIndex.toMap val numRows = features.size val contingency = new BDM(numRows, numLabels, new Array[Double](numRows * numLabels)) |