R help - May 2012 - storage of matrices of diff dimension together

Hi,
It might be a trivial question but how do you store matrices of different
dimensions read from a file or in a loop together? The best solution might be a
list but I don't store the first matrix  correctly:

 m = rbind(c(1,2),c(3,4),c(5,6))
t=rbind(c(1,2),c(5,6))


 l = list(m)
> l = list(l,t)    #I assumed that at the begining I don't have m and t
at the same time to do list(m,t), but I list them, one after the other
> l
[[1]]
[[1]][[1]]
     [,1] [,2]
[1,]    1    2
[2,]    3    4
[3,]    5    6


[[2]]
  [,1] [,2]
t    1    2
     5    6


thanks

Carol

	[[alternative HTML version deleted]]

Hi Carol,
> m1 <- rbind(c(1,2),c(3,4),c(5,6))
> m2 <- rbind(c(1,2),c(5,6))
> mylist <- list(m1)
> c(mylist, list(m2))
[[1]]
     [,1] [,2]
[1,]    1    2
[2,]    3    4
[3,]    5    6

[[2]]
     [,1] [,2]
[1,]    1    2
[2,]    5    6

See the examples in ?c for more information.

Sarah

On Thu, May 10, 2012 at 2:35 PM, carol white <wht_crl at yahoo.com>
wrote:
> Hi,
> It might be a trivial question but how do you store matrices of different
dimensions read from a file or in a loop together? The best solution might be a
list but I don't store the first matrix? correctly:
>
> ?m = rbind(c(1,2),c(3,4),c(5,6))
> t=rbind(c(1,2),c(5,6))
>
>
> ?l = list(m)
>> l = list(l,t)??? #I assumed that at the begining I don't have m and
t at the same time to do list(m,t), but I list them, one after the other
>> l
> [[1]]
> [[1]][[1]]
> ???? [,1] [,2]
> [1,]??? 1??? 2
> [2,]??? 3??? 4
> [3,]??? 5??? 6
>
>
> [[2]]
> ? [,1] [,2]
> t??? 1??? 2
> ???? 5??? 6
>
>
> thanks
>
> Carol
>
-- 
Sarah Goslee
http://www.functionaldiversity.org