Y = [1 2 3 4 5 6 7;
        1 2 3 4 3 2 1;
    7 6 5 4 3 2 1];
subplot(3,2,1)
bar3(Y,'detached')
title('Detached')
subplot(3,2,2)
bar3(Y,0.25,'detached')
title('Width = 0.25')
subplot(3,2,3)
bar3(Y,'grouped')
title('Grouped')
subplot(3,2,4)
bar3(Y,0.5,'grouped')
title('Width = 0.5')
subplot(3,2,5)
bar3(Y,'stacked')
title('Stacked')
subplot(3,2,6)
bar3h(Y,0.3,'stacked')
title('Width = 0.3')