samer@4: function Y=stddevs(Q,X)
samer@4: % stddevs - returns values a certain number of standard deviations from mean
samer@4: %
samer@4: % stddevs :: [[L]], [[N,M]] -> [[L,M]].
samer@4: 
samer@4: Y=Q(:)*std(X) + repmat(mean(X),length(Q),1);