-1
val numClasses = 5
val categoricalFeaturesInfo = Map[Int, Int]()
val impurity = "gini"
val maxDepth = 0
val maxBins = 32
val greaccuracy = 0
for(maxDepth <- 0 to 30){
val model = DecisionTree.trainClassifier(trainData, numClasses, categoricalFeaturesInfo, impurity, maxDepth, maxBins)
val metrics = getMetrics(model, cvData)
val accuracy = metrics.precision
if (accuracy > greaccuracy){
greaccuracy = accuracy
}
}
println("Accuracy = "+greaccuracy)
도움 오류하십시오 ^스왑 스칼라 언어에 의해 두 개의 변수
가능한 [스칼라에서 def, val 및 var 사용] (http://stackoverflow.com/questions/4437373/use-of-def-val-and-var-in-scala) –