[R] how to set rownames / colnames for matrices in a list

[Alain Guillet]

Hi,

If all your matrices have the same size, you should work with an array 
and not with a list. Then you can use dimnames to set the names of the 
rows, columns, and so on..

Alain

Antje wrote:
> Hello,
>
> I have another stupid question. I hope you can give me a hint how to 
> solve this:
>
> I have a list and one element is again a list containing matrices, all 
> of the same dimensions. Now, I'd like to set the dimnames for all 
> matrices:
>
> example code:
>
> m1 <- matrix(1:25, nrow=5)
> m2 <- matrix(26:50, nrow=5)
> # ... there can be much more than two matrices
>
> l <- list()
> l[[1]] <- list(m1,m2)
>
> r_names <- LETTERS[1:5]
> c_names <- LETTERS[6:10]
>
> ? how can I apply these names to any number of matrices within this 
> list-list ?
>
> Ciao,
> Antje
>
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-- 
Alain Guillet
Statistician and Computer Scientist

Institut de statistique - Université catholique de Louvain
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