3/7/2023 0 Comments Sas jmp text miningWe have had more than one case where DSDs identified antagonistic interactions early enough to avoid program delays. When Bradley Jones and Christopher Nachtsheim introduced definitive screening experiments in 2011, I had moved on to Bausch + Lomb. We could run smaller experiments and still get the necessary data, which was very important in the waning days of the Kodak Research Labs when strict quotas were placed on the number and size of experiments. Experiments didn’t have to be orthogonal. In the late 1990s when JMP added optimal designs, we had some new tools. In the 1990s we had JMP, but our DOEs were still basically catalog designs. In the 1980s we started using mainframe SAS. ![]() ![]() As computer tools progressed, we moved from pencil and paper to in-house mainframe programs. After successfully optimizing this solution that had two statistically significant three-way interactions, I was hooked on designed experiments. ![]() Like most young engineers at Kodak, I started out running one-factor-at-a-time designs, until we needed to optimize a five-component solution.
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