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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