Displaying 2 results from an estimated 2 matches for "npairs".
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2004 Jul 30
2
pairwise difference operator
...not very fruitful either. The closest I got to was a cryptic
chunk of code in pairwise.table().
Since I do use something similar myself occasionally, I am hoping
someone from the R-help list can suggest alternatives or past threads.
Thank you.
### Code ###
pairwise.difference <- function(m){
npairs <- choose( ncol(m), 2 )
results <- matrix( NA, nc=npairs, nr=nrow(m) )
cnames <- rep(NA, npairs)
if(is.null(colnames(m))) colnames(m) <- paste("col", 1:ncol(m), sep="")
k <- 1
for(i in 1:ncol(m)){
for(j in 1:ncol(m)){
if(j <= i) next;...
2003 Jul 24
1
geoR size limit problem
Hi all,
I tried to produce some kriged surfaces with geoR (latest version). The size
of the grid should be around 900 x 650 cells (what I find is not a very big
grid), and the number of points is around 2500. The command krige.conv
stopped after arround 5 min saying it can not allocate a vector with around
1.5 billion units. Sounds reasonable.
Is there a workaround? How would I partition the