initialN-set: Initial values for fish spectra

In mizer: Dynamic Multi-Species Size Spectrum Modelling

Initial values for fish spectra

Description

Values used as starting values for simulations with project().

Usage

initialN(params) <- value

initialN(object)

Arguments

params	A MizerParams object
value	A matrix with dimensions species x size holding the initial number densities for the fish spectra.
object	An object of class MizerParams or MizerSim

Value

A matrix with dimensions species x size holding the initial number densities for the fish spectra.

See Also

initialNResource(), initialNOther()

Examples

# Doubling abundance of Cod in the initial state of the North Sea model
params <- NS_params
initialN(params)["Cod", ] <- 2 * initialN(params)["Cod", ]
# Calculating the corresponding initial biomass
biomass <- initialN(params)["Cod", ] * dw(NS_params) * w(NS_params)
# Of course this initial state will no longer be a steady state
params <- steady(params)

mizer documentation built on Oct. 17, 2024, 9:07 a.m.