[R] creating names for lists

From: <tolga.i.uzuner_at_jpmorgan.com>
Date: Fri, 18 Jul 2008 15:03:48 +0100


Dear R Users,
How can I create names for lists within a function where the name itself is a function of several variables ?

> a<-1
> b<-2
> paste(a,b)

[1] "1 2"
> foo<-list(paste(a,b)=3) <<<===== DOES NOT WORK
Error: unexpected '=' in "foo<-list(paste(a,b)="
> eval(paste(a,b))

[1] "1 2"
> foo<-list(eval(paste(a,b))=3) <<<===== NEITHER DOES THIS
Error: unexpected '=' in "foo<-list(eval(paste(a,b))="
> foo<-list("1 2"=3)
> foo
$`1 2`
[1] 3

The last example above is the desired outcome, but the a and the b variable will of course take on different values through the execution of the function.

Thanks in advance,
Tolga  

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