On 4/20/05, Thomas Lumley <[EMAIL PROTECTED]> wrote: > On Wed, 20 Apr 2005 [EMAIL PROTECTED] wrote: > > > I'm trying to manipulate/change a formula prior to passing it to another > > function. A simplified example: > > > > User passes formula to my function: y~x > > My function does: lm(transform(y)~x) > > > > Here, transform() is added to the model's response. > > > > What is the best way to accomplish this? > > One way is > > formula[[2]]<-substitute(transform(y),list(y=formula[[2]])) >
Another way is to use update, e.g. > fo <- y ~ x > update(fo, transform(.) ~ .) transform(y) ~ x ______________________________________________ R-devel@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
