"So do not use '$' or '[..]' terms in model formulae - this is going to cause problems when it comes to predict, because your formula will not associate with the names it has in its formula in the new data frame. When you think about it, this is obvious. "
I really don't understand why this is obvious. I'm new to R programming, and not all that experienced in programming in general. I would be grateful for any further explanation. -- View this message in context: http://r.789695.n4.nabble.com/Newb-Prediction-Question-using-stepAIC-and-predict-is-R-wrong-tp3298569p3304421.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.
