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Apr 12, 2016 at 4:37 history edited JimB CC BY-SA 3.0
Added an example using more factor levels as requested by the OP.
Apr 12, 2016 at 1:40 comment added JimB 90+??? You're funny! I guess I would first try to talk you out of that as maybe there could be one of the categories that could be considered the "base level" ? Please! But, yes, a large number could be done. I'll put together a larger example (but not much increase in code).
Apr 12, 2016 at 0:43 comment added Ray Troy Sorry for the delay, was on holiday. Thank you. Is there a way to generalize it so if I have 90+ predictors it implements this constraint?
Apr 12, 2016 at 0:41 vote accept Ray Troy
Apr 7, 2016 at 21:53 history answered JimB CC BY-SA 3.0