Could you possibly consider reading "An Introduction to R", especially the
first few pages of chapter 5, and also a bit about vectors from chapter 2,
and maybe eventually even some other parts...
You have x[i][j] where length(i)==1, so x[i] will be a single element.
Having [j] there makes no sense except if j==1 (in that case, it makes no
difference). Why would you ask for a second element of a vector of length 1?
K
On Thu, Oct 15, 2009 at 8:23 AM, tdm <ph...@philbrierley.com> wrote:
>
> Hi,
>
> Can someone please give me a pointer as to how I can set values of an
> array?
>
> Why does the code below not work?
>
> my_array <- array(dim=c(2,2))
> my_array[][] = 0
> my_array
> [,1] [,2]
> [1,] 0 0
> [2,] 0 0
>
> for(i in seq(1,2,by=1)){
> for(j in seq(1,2,by=1)){
> my_array[i][j] = 5
> }
> }
>
> Warning messages:
> 1: In my_array[i][j] = 5 :
> number of items to replace is not a multiple of replacement length
> 2: In my_array[i][j] = 5 :
> number of items to replace is not a multiple of replacement length
>
> my_array
> [,1] [,2]
> [1,] 5 0
> [2,] 5 0
>
>
>
> --
> View this message in context:
> http://www.nabble.com/populating-an-array-tp25903190p25903190.html
> Sent from the R help mailing list archive at Nabble.com.
>
> ______________________________________________
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> PLEASE do read the posting guide
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>
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