DoE with one factor constrained to be in a ratio with another factor
Is there a way to use the Custom Design to generate a DoE where one factor is set to a ratio of another? For example, if I have factors A, B and C, each at two levels, however the two levels of C are 1:1 with B or 5:1 with B. This obviously creates more than 2 real levels for C and some of the combinations are not allowed because they don't maintain the ratio. Treating the ratio (i.e. 1 and 5) ...