[R] nls factor

[Paul Smith]

On Wed, Apr 15, 2009 at 1:27 PM, Manuel Gutierrez
<manuelgutierrezlopez at gmail.com> wrote:
> I want to fit the model y=a*x^b using nls; where "a" should be different for
> each level of a factor.
> What is the easiest way to fit it? Can i do it with nls?
> I've looked the help pages and the MASS example in page 249 but the formula
> is different and I don't know how to specify it for my model.

What about linearizing the model with log() and use lm() afterwards?

Paul