docs: @Override
  	public boolean eIsSet(int featureID) {
  		switch (featureID) {
  			case BpsimPackage.USER_DISTRIBUTION_DATA_POINT_TYPE__PARAMETER_VALUE_GROUP:
  				return parameterValueGroup != null && !parameterValueGroup.isEmpty();
  			case BpsimPackage.USER_DISTRIBUTION_DATA_POINT_TYPE__PARAMETER_VALUE:
  				return getParameterValue() != null;
  			case BpsimPackage.USER_DISTRIBUTION_DATA_POINT_TYPE__PROBABILITY:
  				return isSetProbability();
  		}
  		return super.eIsSet(featureID);
  	}