@Deprecated
    public Metrics withRMSE(Double rMSE) {
        setRMSE(rMSE);
        return this;
    }
<p>
The root-mean-square error (RMSE).
</p>

@param rMSE
       The root-mean-square error (RMSE).
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-forecast/src/main/java/com/amazonaws/services/forecast/model/Metrics.java