[R] Linear Modeling the best alternative

Ben Bolker bolker at ufl.edu
Tue Sep 9 18:32:47 CEST 2008

stephen sefick <ssefick <at> gmail.com> writes:

> I have a data set of mean velocity, discharge, and mean depth.  I need
> to find out which model best fits them out of log linear, linear, some
> other kind of model...  Using excel I have found that linear is not
> that bad and log10(discharge) vs. the other two variables (I am trying
> to predict velocity and depth from discharge) is not that bad either.
> How do I test and see which one of these models is better...  better
> R-squared...  I know this is a stats question and not particularly an
> R question, but I will use R for the models vetting process.
> any ideas would be greatly appreciated,

  AIC is not bad, but see
for computing AIC to compare models where some have transformed
response variables ...

  Ben Bolker

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