Hi Glen,
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Jones, Glen R
If a matrix with 5 columns has been defined and the first two columns
need to be sorted in ascending order, how can this be achieved whilst
ensuring the
other 3 columns data are in relative position to the sorted columns?
does the following example-code help you?
mymatrix should resemble the structure of your (original) matrix.
mymatrix2 is the new, sorted matrix.
mymatrix <- matrix(runif(80), ncol=5)
mymatrix[,1] <- sample(c(1,2), size=length(mymatrix[,1]), replace=TRUE)
mymatrix
mymatrix2 <- mymatrix[order(mymatrix[,1],mymatrix[,2]),]
mymatrix2
Best,
Roland
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