get_generations: Get generations

In barrks: Calculate Bark Beetle Phenology Using Different Models

Get generations

Description

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 a mortality event has occured since the diapause started or the model's end date has been reached. Otherwise, the values will be NA.

• get_generations_df(): A data frame.

• get_hibernating_generations_df(): A data frame. Only available if a mortality event has occured since the diapause started or the model's end date has been reached. Otherwise, the values will be NA.

Examples

# 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)

barrks documentation built on April 3, 2025, 9:47 p.m.