On 11/05/2024 10:21, Roozbeh Valavi wrote:
This might also help:
the solution below will not raise the error if x has geographic
(unprojected) coordinates, a case for which you should not use spatstat.
library(spatstat)
library(terra)
.raster_to_im <- function(x){
r <-
This might also help:
library(spatstat)
library(terra)
.raster_to_im <- function(x){
r <- as.data.frame(x, xy = TRUE)
im <- spatstat.geom::as.im(r) return(im)
}
# to generalise the spatstat.geom::as.im to SpatRaster and RasterLayer
as.im.SpatRaster <- function(x){
as.im() was in maptools, which was retired last year. If you need to recreate
old work, install maptools from source from the CRAN package archive
https://cran.r-project.org/src/contrib/Archive/maptools/.
For non-archival work, update the workflow. See also
r.grid.world.SGDF.F[[1]] is a numerical vector, not even a matrix, so
clearly as.im.default doesn't know what it should do with it.
Maybe there was once a method as.im for r.grid.world.SGDF.F, which is of
class SpatialGridDataFrame, but no longer - software evolves.
A way you could approach
Dear Members,
I'll calculate some old codes for a paper review, and I'm astonished that
as.im() for fitting the Poisson model is not working as before. In my example:
library(raster)
library(spatstat)
# Elevation
r.grid.world <-
