[R] list()

[John Kane]

I cannot remember seeing any specific tutorial on the
use of list().  There are bits and pieces here and
there but outside of the little bit in the Intro to R
I cannot think of any.

For your specific question about names you can always
assign (new) names to a list

 # Examples
# No name
aa <- list(rnorm(10,5,2), LETTERS[1:5])
aa
# Names
names(aa)  <- c("numbers", "letters")
aa
# Change name of first element of list
names(aa)[1] <- "randoms"
aa


--- Scott Romans <scott.romans at mac.com> wrote:

> Is anyone familiar with a good tutorial (in print or
> online) on the  
> use of list()? I found Matlab structures to be a
> great way to pass  
> complex variables (such as a model consisting of
> differently- 
> dimensioned variables) back and forth between
> functions. It seems  
> list() requires that you define the components
> within the command  
> (model <- list( var1 =" ", var2 = " ", etc) and that
> if you don't  
> fully define and name the component variables WITHIN
> the list command,  
> you won't be able to refer to them by name
> elsewhere. Instead, you  
> will have to remember the order and call the
> component variables as  
> model[[1]] etc. instead of model$var1. Is this a
> correct  
> understanding? Are there any good, comprehensive
> explanations on  
> list() with examples?
> 
> Thanks!
> 
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