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I have one dependent and two independent variables and I want to predict at new locations using the gwr.predict. I was wondering if there is a way to speed up the function because it is very slow. For example, when using gwr.basic, I can utilize the parameters parallel.method and parallel.arg. Is there a way to use them in the gwr.predict function as well?
Here is the code I am using:
library (GWmodel)
library(raster)
library(sp)
wd = "path/"
provoliko = "EPSG:7767"
tirs = raster(paste0(wd, "tirs.tif"))
pop = raster(paste0(wd, "pop.tif"))
s = stack(pop, tirs)
names(s) = c("pop", "tirs")
regpoints <- rasterToPoints(s, spatial = TRUE)
block.data = read.csv(paste0(wd, "block.data.csv"))
coordinates(block.data) <- c("x", "y")
proj4string(block.data) <- provoliko
dist = GWmodel::gwr.dist(dp.locat = coordinates(block.data), rp.locat = coordinates(regpoints), focus = 0, p = 2, theta = 0, longlat = F)
eq1 <- ntl ~ pop + tirs
abw = bw.gwr(eq1,
data = block.data,
approach = "CV",
kernel = "gaussian",
adaptive = TRUE,
p = 2,
longlat = FALSE,
parallel.method = "omp",
parallel.arg = "omp")
p = gwr.predict(eq1,
data = block.data,
predictdata = regpoints,
bw = abw,
kernel = "gaussian",
adaptive = TRUE,
p = 2,
theta = 0,
longlat = FALSE,
dMat1 = dist)
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