scover-fix

Author: Wei-1

src/main/scala/algorithm/classification/NaiveBoost.scala

@@ -22,11 +22,8 @@ class NaiveBoost() extends Classification {
         false
     }
 
-    override def train(data: Array[(Int, Array[Double])]): Boolean = try {
+    override def train(data: Array[(Int, Array[Double])]): Boolean = {
         classifiers.forall(classifier => classifier.train(data))
-    } catch { case e: Exception =>
-        Console.err.println(e)
-        false
     }
 
     override def predict(data: Array[Array[Double]]): Array[Int] = {

src/main/scala/algorithm/classification/WeightedBoost.scala

@@ -24,14 +24,11 @@ class WeightedBoost() extends Classification {
         false
     }
 
-    override def train(data: Array[(Int, Array[Double])]): Boolean = try {
+    override def train(data: Array[(Int, Array[Double])]): Boolean = {
         if(classifiers.forall(classifier => classifier.train(data))) {
             weight = classifiers.map(classifier => classifier.predict(data.map(_._2)).zip(data.map(_._1)).count(p => p._1 == p._2) / data.size.toDouble)
             true
         } else false
-    } catch { case e: Exception =>
-        Console.err.println(e)
-        false
     }
 
     override def predict(data: Array[Array[Double]]): Array[Int] = {

src/test/scala/general/MatrixFuncTest.scala

@@ -116,13 +116,13 @@ class MatrixFuncSuite extends FunSuite {
     test("MatrixFunc Test : Determinant") {
         val determinantdata = determinant(covariancedata)
         assert(rint4(determinantdata) == 0.16)
-        assert(determinant(Array(Array(0, 0), Array(0, 0))).abs < 1e-8)
+        assert(determinant(Array(Array(0, 1), Array(1, 0))).abs < 1e-8)
     }
 
     val inversedata = inverse(covariancedata)
     test("MatrixFunc Test : Inverse") {
         assert(arrayequal(arrrint4(inversedata(0)), Array(8.75, 6.25, 0.0)))
-        assert(inverse(Array(Array(0, 0), Array(0, 0))).map(_.sum).sum > 1E12)
+        assert(inverse(Array(Array(0, 1), Array(1, 0))).map(_.sum).sum > 1E12)
     }
 
     test("MatrixFunc Test : Mahalanobis ^ 2") {