[R] assign question

[David Huffer]

How about:

   sapply (
     1:27
     , function ( i ) {
       min (
         get ( paste ( "sa" , i , sep = "" ) )
       )
     }
   )

See ?get

david

--
 David
 
 -----------------------------------------------------
 David Huffer, Ph.D.               Senior Statistician
 CSOSA/Washington, DC           david.huffer at csosa.gov
 -----------------------------------------------------

-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On Behalf Of Erin Hodgess
Sent: Monday, July 20, 2009 2:26 PM
To: R help
Subject: [R] assign question

Dear R People:

I have several vectors, sa1, sa2,...sa27 of varying lengths.

I want to produce one vector xener[1:27] which has the minimum of each sa[i].

I'm trying to set up a loop and use the assign statement, but here are
my results:

> for(i in 1:27) {
+ xener[i] <- min(assign(paste("sa",i,sep="")))
+ }
Error in assign(paste("sa", i, sep = "")) :
  element 2 is empty;
   the part of the args list of '.Internal' being evaluated was:
   (x, value, envir, inherits)
>

Any suggestions would be most welcome.

Thanks in advance,
Erin


-- 
Erin Hodgess
Associate Professor
Department of Computer and Mathematical Sciences
University of Houston - Downtown
mailto: erinm.hodgess at gmail.com

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