Customised Mixture Design - how can I set two ingredients to be a constant ratio?
My ingredients sum to 88% which I have set in options.I have set a linear constraint for two ingredients to have a minimum amount greater than the sum of their respective minimum levels.I have two other variables for which the ratio in each recipe of the two must be a constant. I have tried all the different design options but I cannot find a way to do this, is it possible?I am using JMP Pro16.