Thomas Reed <tom.reed <at> ed.ac.uk> writes: > > I want to compare the fit of a quadratic model to continuous data, with that > of a cubic spline fit. Is there a way of computing AIC from for e.g. a GAM > with a smoothing spine, and comparing this to AIC from a quadratic model? Why don't you try AIC() on each of the fitted models and see what happens? In general R can compute log-likelihoods and AICs for most fitted model objects ... If it doesn't work, you can post your simple example to the list and get more advice then ...
Ben Bolker ______________________________________________ R-help@stat.math.ethz.ch 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.
