In the code to follow, I'm trying to label points with their corresponding
values but have been unsuccessful after many variations to the following
code. The code below creates the plot I want, I simply cannot get the black
points ("+") to display the actual value. I'm guessing the problem is
somewhere in the second to last line of code (starts with "pts<-..."). I
have attached the two text files needed to run the code.
http://www.nabble.com/file/p21734824/R_Hk_Krig_File_Log.txt
R_Hk_Krig_File_Log.txt
http://www.nabble.com/file/p21734824/Predict_Location_XY.txt
Predict_Location_XY.txt
Eric
library(gstat)
K.dat<-read.table("C:/temp/R_Hk_Krig_File_Log.txt", header = TRUE)
my.dat<-data.frame(K.dat)
attach(my.dat)
coordinates(my.dat)=~X+Y
pred.dat<-read.table("C:/temp/Predict_Location_XY.txt", header = FALSE)
names(pred.dat)<-c("x","y","p")
my.pred.dat<-data.frame(pred.dat)
coordinates(my.pred.dat)<-~x+y
gridded(my.pred.dat) = TRUE
#Set up 2 exponential variograms
lzm.vgm.exp.noNug<-vgm(1.1,"Exp",2000,0)
lzm.vgm.exp.Nug<-vgm(0.7,"Exp",3000,0.4)
#Krige the exponential variograms
lzm.krig.exp.noNug<-krige(Kh_Log10~1,my.dat,my.pred.dat,model=lzm.vgm.exp.noNug)
lzm.krig.exp.Nug<-krige(Kh_Log10~1,my.dat,my.pred.dat,model=lzm.vgm.exp.Nug)
lzm.krig.exp.noNug$var1.pred<-10^lzm.krig.exp.noNug$var1.pred
lzm.krig.exp.Nug$var1.pred<-10^lzm.krig.exp.Nug$var1.pred
library(sp)
library(lattice)
pts<-list("sp.points",K.dat,pch=3,col="black",labels=as.character(K.dat$Kh))
spplot(lzm.krig.exp.Nug["var1.pred"], scales=list(draw=TRUE),
xlab="Easting",ylab="Northing",cuts=25,key.space="right",cex=1.1,
col.regions=terrain.colors(25),main="Hydraulic Conductivity of Layer 2",
sp.layout=list(pts))
--
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