Make a numeric generations raster categorical

Make a numeric generations raster categorical. Useful when mathematical operations were performed with generations rasters (use get_generations_rst(..., categorical = FALSE) to get numeric generations rasters).

Usage

categorize_generations_rst(
  rst,
  colors = barrks_colors(),
  labels = barrks_labels()
)

Arguments

rst

A numeric SpatRaster that represents bark beetle generations. Sister broods are defined by adding 0.5 to the respective generation.

colors, labels

Vectors of colors/labels starting from zero generations followed consecutively by elements for the respective generations (including sister broods).

Value

A categorical SpatRaster.

Examples

# \donttest{
# calculate phenology with different models
p1 <- phenology('phenips-clim', barrks_data(), .quiet = TRUE)
p2 <- phenology('phenips', barrks_data(), .quiet = TRUE)

# get the generation as numerical rasters to allow mathematical operations
gens1 <- get_generations_rst(p1, categorical = FALSE)
gens2 <- get_generations_rst(p2, categorical = FALSE)

# calculate the maximum generations from the 2 models
gens_max <- max(gens1, gens2)
# categorize the results
gens_max_cat <- categorize_generations_rst(gens_max)

# plot the categorized raster
terra::plot(gens_max_cat)

# plot the uncategorized raster
terra::plot(gens_max)

# }