@Test
 public void testNnclean() throws Exception {
   double[] y = HET_DEL_5X_5N;
   double[] nonnoise =
       new double[] {260.0736, 197.4272, 194.8618, 1217.8588, 1228.2190, 1151.7017};
   double[] result = scorer.nnclean(y, scorer.cleanYIndices(y, 30, 2, 5));
   Arrays.sort(result);
   Arrays.sort(nonnoise);
   assertArrayEquals(nonnoise, result, 0.000001);
 }
 @Test
 public void testNncleanNotEnoughValues() throws Exception {
   double[] y = new double[] {260.0736, 1217.8588};
   double[] nonnoise = new double[] {};
   assertArrayEquals(nonnoise, scorer.nnclean(y, scorer.cleanYIndices(y, 30, 2, 5)), 0.000001);
 }