Github user dbtsai commented on a diff in the pull request:
https://github.com/apache/spark/pull/17715#discussion_r113066007
--- Diff:
mllib/src/main/scala/org/apache/spark/ml/classification/LogisticRegression.scala
---
@@ -434,8 +587,45 @@ class LogisticRegression @Since("1.2.0") (
$(standardization), bcFeaturesStd, regParamL2, multinomial =
isMultinomial,
$(aggregationDepth))
+ val numCoeffs = numFeaturesPlusIntercept * numCoefficientSets
+ val isSetLowerBoundOfCoefficients = isSet(lowerBoundOfCoefficients)
+ val isSetUpperBoundOfCoefficients = isSet(upperBoundOfCoefficients)
+ val isSetLowerBoundOfIntercept = isSet(lowerBoundOfIntercept)
+ val isSetUpperBoundOfIntercept = isSet(upperBoundOfIntercept)
+ var lowerBound: Array[Double] = null
+ var upperBound: Array[Double] = null
+
val optimizer = if ($(elasticNetParam) == 0.0 || $(regParam) ==
0.0) {
- new BreezeLBFGS[BDV[Double]]($(maxIter), 10, $(tol))
--- End diff --
With the above, we can
```scala
val optimizer = if ($(elasticNetParam) == 0.0 || $(regParam) == 0.0) {
if (lowerBound != null && upperBound !=null) {
new BreezeLBFGSB(BDV[Double](lowerBound), BDV[Double](upperBound),
$(maxIter), 10, $(tol))
} else {
new BreezeLBFGS[BDV[Double]]($(maxIter), 10, $(tol))
}
```
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