Hello,
I am creating a Custom Design with 4 factors (Factors A, B, C & D).
I have a question about a constraint that has to do with factors B and D.
- Factor B is actually the number of reactions done in sequence in the same experiment. This can be 1 reaction, 2, 3 or more reactions in sequence. I set the range as 1-3 (not higher because I am not interested at the moment in >3 reactions in sequence).
- Factor D is the time I wait in between the reactions in sequence. Thus, I only define Factor D when Factor B is >1. The range is 0.1 to 10 seconds. Factor D would be 0 if Factor B is 1. In other words, when the number of reactions done in sequence (factor 
is just 1, Factor D doesn't exist because it was just 1 reaction and thus, I don't need to wait any seconds since there is no other reaction in sequence performed.
How can I define this constraint in my Custom Design model?
Thank youuuu!!
PS: I use a Mac.
