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Thanks a lot Michiel!

I corrected all mistakes and also, I left out the 999 for the dummy coded variables. However, the problem still remains. After having run the code, there is only one design with an undefined D-error und a very large number of invalid designs.

May you help me again?

Hi!
I created 4 syntax files each containing a different combination utility functions for different alternatives (one syntax file is presented in the following). Overall, there are 7 alternatives and each of these 6 syntax files contains 6 alternatives. Priors are from a pilot study.

Design
? D ...