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2012 Sep 24
0
Deldir() Thiessen Polygons Problem
Good evening to all.
I find myself trying to create some Thiessen Polygons, in order to finish a
meteorology research.
This is the script I found to create the Polygons:
*
*
*voronoipolygons <- function(x) {*
* require(deldir)*
* if (.hasSlot(x, 'coords')) {*
* crds <- x@coords *
* } else crds <- x*
* z <- deldir(crds[,1], crds[,2])*
* w <- tile.list(z)*
* polys <- vector(mode='list', length=length(w))*
* require(sp)*
* for (i in seq(along=polys)) {*
* pcrds <- cbind(w[[i]]$x, w[[i]]$y)*
* pcrds <- rbind(pcrds, pcrds...
2010 Nov 29
1
Moran I for very large data set
Hi
Are there any more efficient ways of calculating the neighbourhood object for large datasets?
I am trying to compute Moran I statistics for a very large data set (over 14,000 points). I have been using moran.test from the spdep package and everything works fine for a small data set (200 points). However, applying the same script to the whole dataset is taking days to compute (it so far has
2013 Apr 16
1
update config.guess and config.sub to support aarch64
Hello,
would it be possible to update config.sub and config.guess to the latest versions (or at least version
from automake-1.13.1) in order to support new architectures based on the ARM 64 bit CPU?
Patch: http://plautrba.fedorapeople.org/openssh/openssh-latest-config.sub-config.guess.patch
Related Fedora bug: https://bugzilla.redhat.com/show_bug.cgi?id=926284
Thanks,
Petr