如何解决R中外部漂移的错误克里金法？

Question

我正在尝试使用克里金法与外部漂移使用流体力学和水力克里格。当我尝试插值时，我不能很好地插值。我使用的是dem 30m数据。代码如下：

library(zoo)
library(hydroTSM)
library(xts)
library(sp)
library(automap)
library(gstat)
library(sp)
library(rgdal)
library(raster)
bena.ts<- read.csv("EbroPPtsDaily.csv")
bena.gis = read.csv("EbroPPgis.csv")
bena.rs <- raster("DEM-UTM.tif")
bena.sa = readOGR("subBASIN-UTM.shp")
# Covert Raster to spatial grid data frame 
y <- as(bena.rs, "SpatialGridDataFrame")
class(y)
# Make Projection according to study area
p4s <- CRS("+proj=utm +zone=43 +datum=WGS84 +units=m +no_defs +ellps=WGS84
+towgs84=0,0,0")
bena.ts1 <- as.numeric(bena.ts[180, 2:ncol(bena.ts)])
names(bena.ts1) = colnames(bena.ts[180,2:ncol(bena.ts)])
# Computing OK, over the spatial grid defined by the DEM
## Not run: 
x.ok <- hydrokrige(x.ts= bena.ts1, x.gis=bena.gis, 
                   X="EAST_ED50", Y="NORTH_ED50", sname="ID", 
                   formula=value~1,
                   subcatchments= bena.sa,
                   p4s= p4s, 
                   predictors=y,
                   ColorRamp= "Precipitation", 
                   main= "OK Precipitation on the Ebro",
                   arrow.plot= TRUE, 
                   arrow.offset= c(900000,4750000), arrow.scale= 20000,
                   scalebar.plot= TRUE, 
                   sb.offset= c(400000,4480000), sb.scale= 100000)

Answer 1

bena.ts show daily precipitation values at different stationsbena.gis shows coordinates in UTM, elevation of points and subbasins namebena.sa tells about shapefile of study area in UTMbena.rs show DEM 30 m raster file

我的问题是我可以使用elevation对其进行插值。我也将我的栅格DEM 30m文件转换成空间栅格数据帧，但它仍然没有显示任何results.Kindly向导。