catalyze function

Factors to numeric

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. methods

## S4 method for signature 'SpatRaster'
as.numeric(x, index=NULL, filename="", ...)

## S4 method for signature 'SpatRaster'
catalyze(x, filename="", ...)

Arguments

• x: SpatRaster
• index: positive integer or category indicating the category to use. If NULL the active category is used
• filename: character. Output filename
• ...: additional arguments for writing files as in writeRaster

Returns

SpatRaster

See Also

activeCat, cats

Examples

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)