Get generations

Find out how many generations are present (or have reached a development threshold).

Usage

get_generations_rst(
  pheno,
  dates = prop_last_date(pheno),
  threshold = 0,
  generations = prop_hatched_generations(pheno),
  categorical = TRUE,
  colors = barrks_colors("raster"),
  labels = barrks_labels("raster")
)

get_generations_df(
  pheno,
  stations = prop_stations(pheno),
  dates = prop_dates(pheno),
  threshold = 0,
  generations = prop_hatched_generations(pheno)
)

get_hibernating_generations_rst(
  pheno,
  categorical = TRUE,
  colors = barrks_colors("raster"),
  labels = barrks_labels("raster")
)

get_hibernating_generations_df(pheno, stations = prop_stations(pheno))

Arguments

pheno

A phenology (see phenology())

dates

Select dates that should be present in the output.

threshold

Threshold of the beetle development to account for a generation.

generations

Numeric vector that determines which generations should be included in the result.

categorical

Set FALSE if the SpatRaster that is returned should be numeric. Otherwise, it will be categorical.

colors, labels

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

stations

Pass a character vector to choose stations assigned to pheno by their names, or pass different stations. See stations_create() for details.

Value

• get_generations_rst(): A multi-layer SpatRaster.

• get_hibernating_generations_rst(): A SpatRaster. Only available if the model's end date has been reached. Otherwise all values will be NA.

• get_generations_df(): A data frame.

• get_hibernating_generations_df(): A data frame. Only available if the model's end date has been reached. Otherwise all values will be NA.

Examples

# \donttest{
# calculate phenology
p <- phenology('phenips-clim', barrks_data(), .quiet = TRUE)

# get the generations raster
gens <- get_generations_rst(p)

# plot the generations raster
terra::plot(gens)

# }