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 do not 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 spce 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
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