Mary,
You might also want to look at the nncross function in the spatstat package.
-Don
At 8:58 AM -0700 3/18/08, Rick Reeves wrote:
>Mary:
>
>Have a look at this tutorial:
>
>http://nceas.ucsb.edu/scicomp/GISSeminar/UseCases/AssignClosestPointsR/AssignClosestPointsR.html
>
>Uses R, which has a
Mary:
Have a look at this tutorial:
http://nceas.ucsb.edu/scicomp/GISSeminar/UseCases/AssignClosestPointsR/AssignClosestPointsR.html
Uses R, which has a good set of geospatial analysis functions. This web
site has several other examples!
Hope this helps,
Rick Reeves
[EMAIL PROTECTED] wrote
ONKELINX, Thierry wrote:
>
> gstat on the other hand has no problem with a dataset of 14000 points.
>
Right; it computes all pairwise distances in a double loop, but never
stores them.
--
Edzer
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h
> library(geoR)
Loading required package: sp
-
Analysis of geostatistical data
For an Introduction to geoR go to http://www.leg.ufpr.br/geoR
geoR version 1.6-20 (built on 2007-11-28) is now loaded
Does geoR try to store the quadratic form?
> (14049 ** 2 * 8 / 2)/(1024**2)
[1] 752.9236
"I am trying to plot semivarigram using the function "variog" but i am getting
following error message "cannot allocate vector of size 757.6 Mb"
In any case, function variogram in package gstat does not d
Thank you very much for response.
Here i have attached the my code below . Pls have a look and suggest me the
solution.
Thanking you in advance
Yours
Pujan
mol.gr <- read.table(“D:/Pujan_IUPWARE/Second_Year/Thesis/mol.dat”)
mol.gr[,"x"] <-mol.gr[,1]
mol.gr[,"y"] <-mol.gr[,2]
mol.gr[,"Green Ban
Without your code it's hard to see what causes the error. Have you specified
maxdist? The default is the maximum distance among all pairs. Start with
reducing maxdist to one half or one thirth of the maximum distance among all
pairs.
HTH,
Thierry
