Freshly made Definitive Screening Design does not have foldover or center points
I have designed an DSD with 7 continuous variables and a one categoric variable. 18 runs + 4 extra runs. some of the runs however failed, because of a reactive interaction of the solvent with the high temperature, we decided to skip them, thatfore replicate some other important ones. Now, when the results are there and I am about to analyze by the DSD method - 8 runs for some reason are not center...