computeFp05: Calculates the Fbar value giving a maximum probability of ssb...

In flr/mse: Tools for Running Management Strategy Evaluations using FLR

Calculates the Fbar value giving a maximum probability of ssb being below Blim of 5%

Description

Calculates the Fbar value giving a maximum probability of ssb being below Blim of 5%

Usage

computeFp05(
  stock,
  sr,
  SBlim,
  range = c(0.01, 0.75),
  nyears = 3,
  sigmaR = 0.5,
  rho = 0.43,
  its = 500,
  verbose = TRUE
)

Arguments

stock	An FLStock over which the calculation is carried out.
sr	The stock-recruits relationship to use in fwd.
its	Number of iterations
verbose	Should progress be shown, TRUE.

Examples

data(ple4)
sr <- predictModel(model=bevholt, params=FLPar(a=1.4e6, b=1.5e5))
fp05 <- computeFp05(ple4, sr, SBlim=150000, its=300, range=c(0.40, 0.50))
# RUN projection for obtained Fp.05 value
proj <- fwd(propagate(stf(ple4, nyears=100), 300), sr=sr,
  fbar=FLQuant(fp05, dimnames=list(year=2018:2117)),
  deviances=ar1rlnorm(rho=0.43, years=2018:2117, iters=300, meanlog=0,
  sdlog=0.5))
plot(ssb(proj), prob=c(0.01, 0.25, 0.50, 0.75, 0.99)) +
  geom_hline(yintercept=150000)

flr/mse documentation built on Dec. 18, 2024, 10:38 p.m.