[R] variables in object names

[Dimitrios Rizopoulos]

you need something like the following,

fit.lis <- list(model1, model2, model3, model4, model5)
# or if you have many models
fit.lis <- lapply(paste("model", 1:5, sep = ""), get)

sapply(fit.lis, function(x) summary(x)$r.squared)


I hope it helps.

Best,
Dimitris

----
Dimitris Rizopoulos
Ph.D. Student
Biostatistical Centre
School of Public Health
Catholic University of Leuven

Address: Kapucijnenvoer 35, Leuven, Belgium
Tel: +32/(0)16/336899
Fax: +32/(0)16/337015
Web: http://med.kuleuven.be/biostat/
      http://www.student.kuleuven.be/~m0390867/dimitris.htm


Quoting "Pierce, Ken" <ken.pierce at oregonstate.edu>:

> 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
>
> ken.pierce at oregonstate.edu
>
> 541 750-7393
>
> http://www.fsl.orst.edu/lemma/gnnfire
>
>
>
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>
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