Thanks to all who showed me to the get() function. That works like a charm. Ken
________________________________ From: David Barron [mailto:[EMAIL PROTECTED] Sent: Tuesday, September 12, 2006 1:24 PM To: Pierce, Ken; r-help Subject: Re: [R] variables in object names The trick is to use the function get(): > vns <- paste("model",1:4,sep="") > x <- rnorm(10) > model1 <- lm(rnorm(10) ~ x) > model2 <- lm(rnorm(10) ~ x) > model3 <- lm(rnorm(10) ~ x) > model4 <- lm(rnorm(10) ~ x) > r.sq <- summary(model1)$r.square > for (i in 2:4) r.sq <- c(r.sq,summary(get(vns[i]))$r.square) On 12/09/06, Pierce, Ken <[EMAIL PROTECTED]> wrote: Is there any way to put an argument into an object name. For example, say I have 5 objects, model1, model2, model3, model4 and model5. I would like to make a vector of the r.squares from each model by code such as this: rsq <- summary(model1)$r.squared for(i in 2:5){ rsq <- c(rsq, summary(model%i%)$r.squared) } So I assign the first value to rsq then cycle through models 2 through 5 gathering there values. The %i% in my third line indicates which object to draw from. The question is is there any way to pass a variable such as i as part of a name? Ken Kenneth B. Pierce Jr. Research Ecologist Landscape Ecology, Modeling, Mapping and Analysis Team PNW Research Station - USDA-FS 3200 SW Jefferson Way, Corvallis, OR 97331 [EMAIL PROTECTED] 541 750-7393 http://www.fsl.orst.edu/lemma/gnnfire [[alternative HTML version deleted]] ______________________________________________ [email protected] 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. -- ================================= David Barron Said Business School University of Oxford Park End Street Oxford OX1 1HP [[alternative HTML version deleted]] ______________________________________________ [email protected] 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.
