I have a customer who wants to set up a design using the Custom Design Disallowed Combinations filter. 5 factors, all categorical, Yes/No for levels. They want to disallow both Yes/Yes AND No/No for two of the factors for any one treatment combination. In other words, for any one treatment combination, in the two factors, they must be at Yes/No...doesn't matter which is 'Yes' or which is 'No'...I tried cajoling the Disallowed Combinations filter with the following:
In other words disallowing Yes/Yes OR No/No and every time I try to Make the Design I get a 'failed to converge'. Any ideas on how to make this design?
