discrete numeric factor good choice?
I have 4 factors with 3 settings:- time- 5, 10, 20water- 100, 200, 300speed1- 2500, 3000, 4000speed2- 5000, 6000, 7000 my response is viscosity and trying to figure out at what setting can I get my desired viscosity. I am trying to set up a design. Since I have 3 settings of each factor I was thinking of using discrete numeric factor but I read in JMP documentation that "Not all levels of a discre...