Here's an example of the stacking area plots idea:
% Sample data
data = bsxfun(@plus, normpdf(linspace(0,6,100), 2, 0.5)', rand(100,6)*0.1);
data = bsxfun(@plus, data, rand(1,6)*0.5 + 0.25);
% Plot
n = size(data,2);
base = min(data) - 0.01; % Base value for each dataset
bloc = (0:n-1) * 0.5; % Where that base value will be located
axes; hold on;
for ii = 1:size(data,2)
h(ii) = area(data(:,ii)-base(ii)+bloc(ii), bloc(ii));
end
uistack(h, 'top');
