On the NGene Design page, is there a simple way to ensure that all alternatives in my design differ in at least one attribute? (i.e. no option is exactly the same?)
Or do I need to specify a series of restrictions using “logical constraint”? Thank you.
Yi,
We’re not Ngene experts but I would have thought this was automatic with D efficient designs - with unlablelled alternatives. So it’s likely this is a labelled experiment problem in which constraints should help here.
I can suggest coming up with an example where you can show this happening from an ngene script. Then post this on their forum - they are pretty active.