Try this: as.character(as.list(fit1$call)$data)
On Wed, Jan 26, 2011 at 4:12 PM, Tal Galili <tal.gal...@gmail.com> wrote: > Another (similar) question, > > If I now want to know the name of the "data" argument used, is there an > easy way for me to access it? > > I'm trying to use something like: > eval(parse(text = all.vars(terms(fit1))[1])) > > Which (of course) wouldn't work, since the response variable is only > available in the data used by rpart (specifically the "kyphosis" dataset) > > Thanks upfront. > > Tal > > > > > ----------------Contact > Details:------------------------------------------------------- > Contact me: tal.gal...@gmail.com | 972-52-7275845 > Read me: www.talgalili.com (Hebrew) | www.biostatistics.co.il (Hebrew) | > www.r-statistics.com (English) > > ---------------------------------------------------------------------------------------------- > > > > > On Wed, Jan 26, 2011 at 7:40 PM, Henrique Dallazuanna <www...@gmail.com>wrote: > >> Try this: >> >> all.vars(terms(fit1)) >> all.vars(terms(fit2)) >> >> >> On Wed, Jan 26, 2011 at 3:33 PM, Tal Galili <tal.gal...@gmail.com> wrote: >> >>> Hello all, >>> >>> I wish to extract the terms from an rpart object. >>> Specifically, I would like to be able to know what is the response >>> variable >>> (so I could do some manipulation on it). >>> But in general, such a method for rpart will also need to handle a "." >>> case >>> (see fit2) >>> >>> Here are two simple examples: >>> >>> fit1 <- rpart(Kyphosis ~ Age + Number + Start, data=kyphosis) >>> fit1$call >>> fit2 <- rpart(Kyphosis ~ ., data=kyphosis) >>> fit2$call >>> >>> >>> Is there anything "prettier" then using string manipulation? >>> >>> >>> Thanks. >>> >>> >>> >>> >>> >>> ----------------Contact >>> Details:------------------------------------------------------- >>> Contact me: tal.gal...@gmail.com | 972-52-7275845 >>> Read me: www.talgalili.com (Hebrew) | www.biostatistics.co.il (Hebrew) | >>> www.r-statistics.com (English) >>> >>> ---------------------------------------------------------------------------------------------- >>> >>> [[alternative HTML version deleted]] >>> >>> ______________________________________________ >>> R-help@r-project.org 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. >>> >> >> >> >> -- >> Henrique Dallazuanna >> Curitiba-Paraná-Brasil >> 25° 25' 40" S 49° 16' 22" O >> > > -- Henrique Dallazuanna Curitiba-Paraná-Brasil 25° 25' 40" S 49° 16' 22" O [[alternative HTML version deleted]]
______________________________________________ R-help@r-project.org 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.
