Hi, I have two factors A and B and I want to run a DOE to study my response. My factor B is at 3 levels; (900, 1450 and 2000) , my factor A is at 4 levels 35, 65, 80 and 105. First of all is it right to have one factor at 4 levels. I have encountered situations where the factors are either at 2 levels or 3 levels.? This will require me to have 12 runs for a full factorial, right? Also, I want to run only the level 35 of factor A with the level 900 of factor B. If I remove the combination 35, 1450 and 35, 2000; I'll have only 10 runs and the resulting design space will not be orthogonal. How do I tackle this problem? Is there a different design that you would suggest. Thanks for your help. SH Lee Sent via Deja.com http://www.deja.com/ ================================================================= Instructions for joining and leaving this list and remarks about the problem of INAPPROPRIATE MESSAGES are available at http://jse.stat.ncsu.edu/ =================================================================
