diff options
Diffstat (limited to 'mllib/src/main/scala')
| -rw-r--r-- | mllib/src/main/scala/org/apache/spark/ml/classification/LogisticRegression.scala | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mllib/src/main/scala/org/apache/spark/ml/classification/LogisticRegression.scala b/mllib/src/main/scala/org/apache/spark/ml/classification/LogisticRegression.scala index 3e8040d3e9..ffd03e55b5 100644 --- a/mllib/src/main/scala/org/apache/spark/ml/classification/LogisticRegression.scala +++ b/mllib/src/main/scala/org/apache/spark/ml/classification/LogisticRegression.scala @@ -745,7 +745,7 @@ private[classification] class MultiClassSummarizer extends Serializable { def countInvalid: Long = totalInvalidCnt /** @return The number of distinct labels in the input dataset. */ - def numClasses: Int = distinctMap.keySet.max + 1 + def numClasses: Int = if (distinctMap.isEmpty) 0 else distinctMap.keySet.max + 1 /** @return The weightSum of each label in the input dataset. */ def histogram: Array[Double] = { |