mizer (version 1.0.1)

plotGrowthCurves: Plot growth curves giving weight as a function of age

Description

If given a '>MizerSim object, uses the growth rates at the final time of a simulation to calculate the size at age. If given a '>MizerParams object, uses the initial growth rates instead.

Usage

plotGrowthCurves(object, ...)
# S4 method for MizerSim
plotGrowthCurves(object,
  species = as.character(sim@params@species_params$species),
  max_age = 20, percentage = FALSE, print_it = TRUE)
# S4 method for MizerParams
plotGrowthCurves(object,
  species = as.character(params@species_params$species), max_age = 20,
  percentage = FALSE, print_it = TRUE)

Arguments

object

MizerSim or MizerParams object

...

Other arguments (unused)

species

Name or vector of names of the species to be plotted. By default all species are plotted.

max_age

The age up to which the weight is to be plotted. Default is 20

percentage

Boolean value. If TRUE, the size is shown as a percentage of the maximal size.

print_it

Display the plot, or just return the ggplot2 object. Defaults to TRUE

Value

A ggplot2 object

Details

When the growth curve for only a single species is plotted, horizontal lines are included that indicate the maturity size and the maximum size for that species. If furthermore the species parameters contain the variables a and b for length to weight conversion and the von Bertalanffy parameter k_vb, then the von Bertalanffy growth curve is superimposed in black.

Examples

# NOT RUN {
data(NS_species_params_gears)
data(inter)
params <- MizerParams(NS_species_params_gears, inter)
sim <- project(params, effort=1, t_max=20, t_save = 2)
plotGrowthCurves(sim, percentage = TRUE)
plotGrowthCurves(sim, species = "Cod", max_age = 24)
# }