%	Examples of linguistic variables and linguistic values%	Copyright by Jyh-Shing Roger Jang, 6-2-93.x = (0:100)';young = gbell_mf(x, [20, 2, 0]); middle_aged = gbell_mf(x, [25, 3, 45]); old = gbell_mf(x, [30, 3, 100]);very_old = old.^2;very_young = young.^2;all = [young middle_aged old very_young very_old];subplot(211);plot(x, all, '-'); xlabel('X = age'); ylabel('Membership Grades');axis([-inf inf 0 1.1]);text(72, 0.80, 'Old')text(79, 0.70, 'Very')text(79.5, 0.60, 'Old')text(14, 0.90, 'Young')text(8.5, 0.65, 'Very')text(8, 0.55, 'Young')text(40, 0.90, 'Middle Aged')