package water.api;

import hex.ModelMetricsRegression;

public class ModelMetricsRegressionV3 extends ModelMetricsBase<ModelMetricsRegression, ModelMetricsRegressionV3> {
  @API(help="The Standard Deviation of the response for this scoring run.", direction=API.Direction.OUTPUT)
  public double sigma;

  @API(help="The Mean Squared Error of the prediction for this scoring run.", direction=API.Direction.OUTPUT)
  public double mse;
}

@@ -426,11 +426,239 @@
 ble mse;
+%0A%0A  @Override public ModelMetricsRegressionV3 fillFromImpl(ModelMetricsRegression modelMetrics) %7B%0A    super.fillFromImpl(modelMetrics);%0A    this.mse = modelMetrics._mse;%0A    this.sigma = modelMetrics._sigma;%0A    return this;%0A  %7D
 %0A%7D%0A

Add fillFromImpl for regression Model Metrics.