问题描述
library(raster)
boroughs <- shapefile("C:\\Downloads\\IND_adm (1)\\IND_adm3.shp")
proj4string(boroughs)
class(boroughs)
plot(boroughs)
boroughoutline <- fortify(boroughs)
krig<-krige(formula=Reach ~ 1,locations=rd,newdata=Grd,model=model.variog)
krig.output=as.data.frame(krig)
names(krig.output)[1:3]<-c("long","lat","var1.pred")
plot<-ggplot(data=krig.output,aes(x=long,y=lat))
layer1<-c(geom_tile(data=krig.output,aes(fill=var1.pred)))
layer2<-c(geom_path(data=boroughoutline,aes(long,lat,group=group),colour = "grey40",size=1))
plot+layer1+layer2+scale_fill_gradient(low="#FEEBE2",high="#7A0177")+coord_equal()
解决方法
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