Get growth curves giving weight as a function of age

getGrowthCurves(object, species = NULL, max_age = 20, percentage = FALSE)

## Arguments

object MizerSim or MizerParams object. 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. The species to be selected. Optional. By default all target species are selected. A vector of species names, or a numeric vector with the species indices, or a logical vector indicating for each species whether it is to be selected (TRUE) or not. The age up to which to run the growth curve. Default is 20. Boolean value. If TRUE, the size is given as a percentage of the maximal size.

## Value

An array (species x age) containing the weight in grams.

Other summary functions: getBiomass(), getDiet(), getN(), getSSB(), getYieldGear(), getYield()

## Examples

growth_curves <- getGrowthCurves(NS_params, species = c("Cod", "Haddock"))
str(growth_curves)
#>  num [1:2, 1:50] 0.001 0.001 0.87 2.546 4.499 ...
#>  - attr(*, "dimnames")=List of 2
#>   ..$Species: chr [1:2] "Haddock" "Cod" #> ..$ Age    : chr [1:50] "0" "0.408163265306122" "0.816326530612245" "1.22448979591837" ...

library(ggplot2)
ggplot(melt(growth_curves)) +
geom_line(aes(Age, value)) +
facet_wrap(~ Species, scales = "free") +
ylab("Size[g]") + xlab("Age[years]")