* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public void unsetDistribution() {
DistributionType oldDistribution = distribution;
boolean oldDistributionESet = distributionESet;
distribution = DISTRIBUTION_EDEFAULT;
distributionESet = false;
if (eNotificationRequired())
eNotify(new ENotificationImpl(this, Notification.UNSET, _40Package.GENERAL_REGRESSION_MODEL_TYPE__DISTRIBUTION, oldDistribution, DISTRIBUTION_EDEFAULT, oldDistributionESet));