将 SpatRaster 对象转换为 SpatialGridDataFrame

Turning a SpatRaster object to a SpatialGridDataFrame

如何将 SpatRaster 对象(来自 terra 包)转换为 SpatialGridDataFrame 对象?

r <- terra::rast(matrix(runif(10), 5, 5))
as(r, "SpatialGridDataFrame")

> Error in as(r, "SpatialGridDataFrame") : 
  no method or default for coercing “SpatRaster” to “SpatialGridDataFrame”

你必须经过光栅:

library(terra)
library(raster)

x <- terra::rast(matrix(runif(25), 5, 5))
y <- raster(x)
z <- as(y, "SpatialGridDataFrame")