srowen commented on a change in pull request #30000:
URL: https://github.com/apache/spark/pull/30000#discussion_r502815872
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File path:
mllib/src/main/scala/org/apache/spark/ml/regression/AFTSurvivalRegression.scala
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@@ -421,9 +421,17 @@ class AFTSurvivalRegressionModel private[ml] (
}
if (hasQuantilesCol) {
- val predictQuantilesUDF = udf { features: Vector =>
predictQuantiles(features)}
+ val baseQuantiles = $(quantileProbabilities)
+ .map(q => math.exp(math.log(-math.log1p(-q)) * scale))
+ val lambdaCol = if ($(predictionCol).nonEmpty) {
Review comment:
I think you're probably right here but why is lambdaCol the first
predictionCol here?
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