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Change a categorical layer into one or more numerical layers. With as.numeric you can transfer the active category values to cell values in a non-categorical SpatRaster. catalyze creates new layers for each category.
# S4 method for SpatRaster
as.numeric(x, index=NULL, filename="", ...)# S4 method for SpatRaster
catalyze(x, filename="", ...)
SpatRaster
SpatRaster
positive integer or category indicating the category to use. If NULL the active category is used
character. Output filename
additional arguments for writing files as in writeRaster
activeCat, cats
set.seed(0)
r <- rast(nrows=10, ncols=10)
values(r) <- sample(3, ncell(r), replace=TRUE) + 10
d <- data.frame(id=11:13, cover=c("forest", "water", "urban"), letters=letters[1:3], value=10:12)
levels(r) <- d
catalyze(r)
activeCat(r) <- 3
as.numeric(r)
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