This is additional to the post above (which I forgot to write): What I mean with "How to interpret the coefficients as they are very large numbers" is that it seems to be a bit ridiculous to think that survival is e.g. 8.815e+34 (hazard ration taken from the interaction LT:Food:Temp2) times lower when the interaction increases by one (?).
Actually I don't know how to interpret this 3-case interaction either. Does it mean that when all of the variables in interaction increase by one unit, the survival decreases by the certain amount (told by the exp(coef)-value)? This whole model-interpretation really confuses me. The final coxph-model was received by downward-selection using step-function. Cheers, R-girl -- View this message in context: http://r.789695.n4.nabble.com/Cox-proportional-hazard-model-and-coefficients-tp4636366p4636374.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
