[R] enable object name to be called as object (a dataset)

Gabor Csardi csardi at rmki.kfki.hu
Sat Sep 8 00:04:16 CEST 2007


"get" might be good enough for you:

> a <- 10
> name <- "a"
> get("a")
[1] 10
> get(name)
[1] 10
>

Gabor

On Fri, Sep 07, 2007 at 02:42:07PM -0700, runner wrote:
> 
> What I am trying to do is as follows:
> 
> - I have listed names of all wanted objects (datasets A,B,C... ) in current
> workspace as a vector: 
> 
> obj <- c('A','B','C')
> 
> - then i need to use these objects, say to extract all the 1st columns and
> bind to an existing dataset ('data'): 
>  
> for ( i in 1:3){
> newdata <- obj[i] 
> data <- cbind(data,newdata [[1]] )
> }
> 
> Obviously, it doesn't work since obj[i] is just a string of dataset name.
> Here is my question: how to call it as a original dataset? Thanks.
> -- 
> View this message in context: http://www.nabble.com/enable-object-name-to-be-called-as-object-%28a-dataset%29-tf4403933.html#a12563767
> Sent from the R help mailing list archive at Nabble.com.
> 
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-- 
Csardi Gabor <csardi at rmki.kfki.hu>    MTA RMKI, ELTE TTK



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