Message-ID: <Pine.GSO.4.10.10304231206120.24600-100000@quetelet.stat.ucla.edu>
Date: 2003-04-23T19:08:15Z
From: Roger D. Peng
Subject: sum
In-Reply-To: <1051120650.3ea6d40a13183@webmail.sapo.pt>
How about something like:
> matlist <- list(matrix(1:16, 4, 4), matrix(2, 4, 4))
> do.call("+", matlist)
[,1] [,2] [,3] [,4]
[1,] 3 7 11 15
[2,] 4 8 12 16
[3,] 5 9 13 17
[4,] 6 10 14 18
>
-roger
_______________________________
UCLA Department of Statistics
http://www.stat.ucla.edu/~rpeng
On Wed, 23 Apr 2003, Luis Silva wrote:
> Dear helpers
>
> I have a list where each element is a matrix (the list is
> obtained with lapply). I want to sum those matrices. Is there a
> function to do that? The sum function sums all the elements...
> --
>
>
> http://adsl.sapo.pt
>
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