[R-sig-Geo] Variogram Plot

Edzer Pebesma edzer.pebesma at uni-muenster.de
Tue Mar 18 10:06:44 CET 2008


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 do so.
--
Edzer

PUJAN RAJ REGMI wrote:
> 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 Band Reflectance"] <-mol.gr[,3]
> map<-as.geodata(mol.gr)   # make a geoR object to use various ready-made R unctions 
> coal.var <- variog(map, max.dist =283.6)   # omnidirectional semivariogram up to half max distance
> Note: The total number of data points are 14094.
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