[R] substituting an object not found

[Gabor Csardi]

> rm(list=ls())
> a <- 1
> ifelse(exists("b"), b, a)
[1] 1
> b <- 2
> ifelse(exists("b"), b, a)
[1] 2
> 

Gabor

On Fri, Jan 27, 2006 at 04:38:39AM -0800, Mikkel Grum wrote:
> Is there any function in R like
> 
> is.not.found(x, y)  
> 
> meaning if you can't find object x, then use object
> y??
> 
> 
> Mikkel Grum
> 
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-- 
Csardi Gabor <csardi at rmki.kfki.hu>    MTA RMKI, ELTE TTK