[R] naming list entries dynamically

[Gábor Csárdi]

On Thu, Oct 23, 2008 at 10:29 PM,  <tlange at gwdg.de> wrote:
> Hello,
>
> I'm new to R and I'd like to dynamically assign names to the entries of a
> list.
> The situation is: I load several ascii-files from a folder. The data shall
> be stored within the list structure, where the file names are assigned to
> the list entries.
>
>> flist
> $file1.txt
>  [1]  1.0  1.2  1.4  1.6  1.8  2.0...
> $file2.txt
>  [1]  1.0  1.2  1.4  1.6  1.8  2.0...
>
> That's what I would like to see. But I got stucked coding it. Web search
> doesn't helped me a lot. Here is some code I thought it somehow would work
> like this:
>
> <----
> flist <- list()
> fname <- list.files(pattern="some_pattern.txt")
> for(i in 1:length(fname)) {
>   flist$"how_do_I_name_it_dynamically?" <- read.table(fname[i],
> header=FALSE)

Do

flist[[ fname[i] ]] <- ....

Btw. 1:length(fname) will fail as soon as fname will be empty. Do
seq_along(fname) instead.

> }
> ---->
>
> Second: I assume to use lists in R more or less like Matlab-structs. I
> hope that's not compleatly wrong... ?

That I don't know.

Gabor

> Appreciating any help and hints,
> Torsten
>
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-- 
Gabor Csardi <Gabor.Csardi at unil.ch>     UNIL DGM