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- library(sp)
- library(gstat)
- library(dplyr)
- library(ggplot2)
- library(scales)
- library(magrittr)
- Data = read.csv("D:\\sumurjatibarang.csv")
- coordinates(Data) = ~x+y
- glimpse(Data)
- Data%>%as.data.frame%>%
- ggplot(aes(x,y)) +
- geom_point(aes(size=k.fracture), col="blue", alpha=0.6) +
- ggtitle("permeabilitas (mD)") + coord_equal() + theme_bw()
- kfracture.vgm = variogram(log(k.fracture)~1, Data, width = 0.08)
- plot(kfracture.vgm)
- n = 0.005
- kolom = seq(Data@bbox[1,1]-n, Data@bbox[1,2]+n, by=n)
- baris = seq(Data@bbox[2,1]-n, Data@bbox[2,2]+n, by=n)
- the.grid = expand.grid(x=kolom,y=baris)
- coordinates(the.grid) = ~x+y
- gridded(the.grid) = T
- plot(the.grid, cex=0.5)
- points(Data, pch=1, col="red", cex =0.7)
- (kfracture.fit = fit.variogram(kfracture.vgm, model = vgm(1,"Exp",0.4,0.1)))
- plot(kfracture.vgm, kfracture.fit)
- (kfracture.kriged <- krige(log(k.fracture)~1, Data, the.grid, model=kfracture.fit))
- spplot(kfracture.kriged["var1.pred"], main = "ordinary kriging predictions 1")
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