code: public RandomVariable[]	getParameter() {
  		double[] parameterAsDouble = this.getParameterAsDouble();
  		RandomVariable[] parameter = new RandomVariable[parameterAsDouble.length];
  		for(int i=0; i<parameter.length; i++) {
  			parameter[i] = new Scalar(parameterAsDouble[i]);
  		}
  		return parameter;
  	}
docs: Get the parameters of determining this parametric
  covariance model. The parameters are usually free parameters
  which may be used in calibration.
  
  @return Parameter vector.