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place
2011 Nov 03
2
optimising a loop
Dear R community,
I'm trying to remove a loop from my code but I'm stock and I can't find a good way to do it. Hopefully one of you will have something clever to propose.
Here is a simplified example:
I have a squared matrix:
> nom.plac2 <- c("102", "103", "301", "303","304", "403")
> poids2 <- matrix(NA, 6,6, dimnames=list(nom.plac2,nom.plac2))
> poids2
102 103 301 303 304 403
102 NA NA NA NA NA NA
103 NA NA NA NA NA NA
301 NA NA NA NA NA...