Message-ID: <7303342.378521241164580646.JavaMail.defaultUser@defaultHost>
Date: 2009-05-01T07:56:20Z
From: giuseppeform at libero.it
Subject: Variogram: Tollerance in lag and angle
Dear all, i have my dataset (x,y,zvalue) and I will change tollerance in lag
and in angle of the variogram.
I usa gtat and variogram. What I must change for
the lag: width o cutoff?And for the angle tollerance?
This is that i have:
dati<-read.table("a.dat")
coordx<-dati[,1]
coordy<-dati[,2]
valuecd<-dati[,
5]
xycd<-data.frame(x=coordx,y=coordy,z=valuecd)
g<-gstat(id="cd",formula=(z)
~1,locations=~x+y,data=xycd)
cdvaromnidirectional=variogram(g)
cdvardirectional=variogram(g,alpha=c(22.5,67.5,112.5,157.5),width=0.1)
I must
continue......