Thanks that did the work. Once I have that list what is the easiest way to
export the structure as well as the contents (numbers) into a file.
The purpose is to share that file with a colleague and ask him to load that
variable with its contents and structure.
Best Regards
Alex
--- On Fri, 2/11/11, Petr Savicky <savi...@praha1.ff.cuni.cz> wrote:
> From: Petr Savicky <savi...@praha1.ff.cuni.cz>
> Subject: Re: [R] Matrix of Matrices?
> To: r-help@r-project.org
> Date: Friday, February 11, 2011, 12:22 PM
> On Thu, Feb 10, 2011 at 11:54:50PM
> -0800, Alaios wrote:
> > Dear all I have a few matrices that I would like to
> store alltogether under a bigger object.
> > My matrixes with the same name were calculated inside
> a loop like
> >
> > for (few times){
> >
> > estimatedsr<- this is my matrix
> > savematrixasimagefile();
> >
> >
> > }
> >
> > which means that I was losing all that instances.
> > What can I do to keep all these matrices? ( I do not
> know in advance their number, so I can not preallocate
> space).
> > How can I store them and adress them back again?
> >
> > I would like to thank you in advance in your help
>
> Hello.
>
> A possible approach is to use list (see ?list).
>
> lst <- list()
> lst[[1]] <- rbind(c(1, 2), c(1, 2))
> lst[[2]] <- rbind(c(3, 3), c(4, 4))
> lst
>
> [[1]]
> [,1] [,2]
> [1,] 1 2
> [2,] 1 2
>
> [[2]]
> [,1] [,2]
> [1,] 3 3
> [2,] 4 4
>
> If you know in advance an upper bound on the number of
> matrices,
> then it is possible to use an array (see ?array). For
> example
> storing two matrices 2 x 2 may be done as follows
>
> a <- array(dim=c(2, 2, 2))
> a[,,1] <- rbind(c(1, 2), c(1, 2))
> a[,,2] <- rbind(c(3, 3), c(4, 4))
> a
>
> , , 1
>
> [,1] [,2]
> [1,] 1 2
> [2,] 1 2
>
> , , 2
>
> [,1] [,2]
> [1,] 3 3
> [2,] 4 4
>
> Hope this helps.
>
> Petr Savicky.
>
> ______________________________________________
> R-help@r-project.org
> mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained,
> reproducible code.
>
____________________________________________________________________________________
Don't get soaked. Take a quick peek at the forecast
with
uts/#loc_weather
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
