### Question:
ContinuousEvaluator extends Evaluator { public double mse() { if (count == 0) { return 0.0; } return squaredError / count; } ContinuousEvaluator();  ContinuousEvaluator(String representative);  ContinuousEvaluator(RepresentativeMetric representative); @Override void compute(TrainingMap trainingMap); @Override void compute(TrainingMap trainingMap, StandardPredicate predicate); @Override double getRepresentativeMetric(); @Override boolean isHigherRepresentativeBetter(); double mae(); double mse(); @Override String getAllStats(); static final String CONFIG_PREFIX; static final String REPRESENTATIVE_KEY; static final String DEFAULT_REPRESENTATIVE; }### Answer:
@Test public void testMSE() { ContinuousEvaluator computer = new ContinuousEvaluator(); computer.compute(trainingMap, predicate); assertEquals(0.16, computer.mse(), MathUtils.EPSILON); }