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3fid
2012 Feb 26
1
Matrix problem to extract animal associations
...ple code can be found below.
Very best wishes,
Ross
Dr Ross Dwyer
Postdoctoral Research Fellow
University of Queensland
> ###
> require(stats)
> x <- sample(1:20,10)
> y <- sample(1:20,10)
> IDs <- sapply(1:10,function(i) paste("ID",i,sep=""))
> (DFid <- data.frame(x,y))
x y
1 7 20
2 5 3
3 12 5
4 3 12
5 18 19
6 2 1
7 19 15
8 20 11
9 13 14
10 1 2
>
>
> (DMdist <- dist(DFid, method = "euclidean",
+ diag = FALSE, upper = TRUE))
1 2 3 4 5...