On 7/24/07, Stephen Tucker <[EMAIL PROTECTED]> wrote: > Hope these help for alternatives to lm()? I show the use of a 2nd order > polynomial as an example to generalize a bit.
Great, thanks. If I want to demonstrate that a non-linear curve fits better than an exponential, what's the best measure for that? Given that neither of nls() or optim() provide R-squared. Sorry if these are really silly questions. > Sometimes from the subject line two separate responses can appear as reposts > when in fact they are not... (though there are identical reposts too). I > should probably figure a way around that. Nope, my fault, I didn't read them properly and thought you were demonstrating a different way to do exponential curves. Cheers, Andrew. ______________________________________________ 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.
