From: Vicky Landsman <msvika_at_mscc.huji.ac.il>

Date: Thu 17 Mar 2005 - 03:21:47 EST

R-help@stat.math.ethz.ch mailing list

https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Thu Mar 17 03:23:48 2005

Date: Thu 17 Mar 2005 - 03:21:47 EST

Dear all,

I think that my question is very simple but I failed to solve it.
I have a list which elements are matrices like this:

>mylist

*[[1]]
*

[,1] [,2] [,3]

[1,] 1 3 5

[2,] 2 4 6

*[[2]]
*

[,1] [,2] [,3]

[1,] 7 9 11

[2,] 8 10 12

I'd like to create a matrix M<-mylist[[1]]+mylist[[2]]

[,1] [,2] [,3]

[1,] 8 12 16

[2,] 10 14 18

Is there a way to create M without looping?
Thanks a lot,

Vicky Landsman.

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R-help@stat.math.ethz.ch mailing list

https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Thu Mar 17 03:23:48 2005

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