R help - Nov 2010 - save a list as a matrix

Hello,
Let's assume that one has a list:
my.list <- list(a=c(1,2,3,4),b=4,c=c(1:7))

I want to save my.list as a matrix in .txt file. Because of  different
length we can put NA or 0.
Effect (row.names a, b and c are not necessary)

a 1 2 3 4 0 0 0
b 4 0 0 0 0 0 0
c 1 2 3 4 5 6 7

How to do it?
Thank you.
Robert

Hi Mohamed,
It works. Thank you very much.

Best,
Robert


2010/11/20  <mohamed.lajnef at inserm.fr>:
> Hi Robert,
>
> Try to do this
>
> ?Len <- max(sapply(my.list, length))
>
> ?fun1 <- lapply(my.list, function(x){
> ? ? ?c(x, rep(0, Len))[1:Len]
> ?})
> ?do.call(rbind, fun1)
>
> M
> Regards

Try this also:

t(sapply(my.list, '[', seq(max(sapply(my.list, length)))))

On Sat, Nov 20, 2010 at 9:06 AM, Robert Ruser
<robert.ruser@gmail.com>wrote:
> Hello,
> Let's assume that one has a list:
> my.list <- list(a=c(1,2,3,4),b=4,c=c(1:7))
>
> I want to save my.list as a matrix in .txt file. Because of  different
> length we can put NA or 0.
> Effect (row.names a, b and c are not necessary)
>
> a 1 2 3 4 0 0 0
> b 4 0 0 0 0 0 0
> c 1 2 3 4 5 6 7
>
> How to do it?
> Thank you.
> Robert
>
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> PLEASE do read the posting guide
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>


-- 
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O

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