Recent content by mxplut

Thanks for the thoughts. You lost me with the first one. Poking with a stick is something I can do though! In principle, 'search and return' to derive groups that contain none of a set of ingredients sounds feasible. The practice is a little tricky for an excel-jockey like me. I had a...

First let me apologise for the improper use of 'groups'. I'm not a mathematician but I know that 'groups' means something specific. Anyway, here is my problem. The exact circumstances of my problem are esoteric and bothersome to explain, and I don't want to distract you with details that do...