This should work:
do.call(cbind, lapply(1:length(obj), function(i) get(obj[i])[,1]))
Best,
Giovanni
> Date: Fri, 07 Sep 2007 14:42:07 -0700 (PDT)
> From: runner <[EMAIL PROTECTED]>
> Sender: [EMAIL PROTECTED]
> Precedence: list
>
>
> 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.
> --
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> 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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>
>
--
Giovanni Petris <[EMAIL PROTECTED]>
Associate Professor
Department of Mathematical Sciences
University of Arkansas - Fayetteville, AR 72701
Ph: (479) 575-6324, 575-8630 (fax)
http://definetti.uark.edu/~gpetris/
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