diff options
Diffstat (limited to 'mllib/src/main/scala/org/apache/spark/ml/regression/GeneralizedLinearRegression.scala')
-rw-r--r-- | mllib/src/main/scala/org/apache/spark/ml/regression/GeneralizedLinearRegression.scala | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/mllib/src/main/scala/org/apache/spark/ml/regression/GeneralizedLinearRegression.scala b/mllib/src/main/scala/org/apache/spark/ml/regression/GeneralizedLinearRegression.scala index 02b27fb650..bb9e150c49 100644 --- a/mllib/src/main/scala/org/apache/spark/ml/regression/GeneralizedLinearRegression.scala +++ b/mllib/src/main/scala/org/apache/spark/ml/regression/GeneralizedLinearRegression.scala @@ -992,7 +992,7 @@ class GeneralizedLinearRegressionSummary private[regression] ( } else { link.unlink(0.0) } - predictions.select(col(model.getLabelCol), w).rdd.map { + predictions.select(col(model.getLabelCol).cast(DoubleType), w).rdd.map { case Row(y: Double, weight: Double) => family.deviance(y, wtdmu, weight) }.sum() @@ -1004,7 +1004,7 @@ class GeneralizedLinearRegressionSummary private[regression] ( @Since("2.0.0") lazy val deviance: Double = { val w = weightCol - predictions.select(col(model.getLabelCol), col(predictionCol), w).rdd.map { + predictions.select(col(model.getLabelCol).cast(DoubleType), col(predictionCol), w).rdd.map { case Row(label: Double, pred: Double, weight: Double) => family.deviance(label, pred, weight) }.sum() @@ -1030,9 +1030,10 @@ class GeneralizedLinearRegressionSummary private[regression] ( lazy val aic: Double = { val w = weightCol val weightSum = predictions.select(w).agg(sum(w)).first().getDouble(0) - val t = predictions.select(col(model.getLabelCol), col(predictionCol), w).rdd.map { - case Row(label: Double, pred: Double, weight: Double) => - (label, pred, weight) + val t = predictions.select( + col(model.getLabelCol).cast(DoubleType), col(predictionCol), w).rdd.map { + case Row(label: Double, pred: Double, weight: Double) => + (label, pred, weight) } family.aic(t, deviance, numInstances, weightSum) + 2 * rank } |