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Run a multi-fleet multi-stock Management Strategy Evaluation

Source: R/multiMSE.R
multiMSE.Rd

Functions for running a multi-stock and/or multi-fleet Management Strategy Evaluation (closed-loop simulation) for a specified operating model

Usage

SimulateMOM(MOM = MSEtool::Albacore_TwoFleet, parallel = TRUE, silent = FALSE)

ProjectMOM(
  multiHist = NULL,
  MPs = NA,
  parallel = FALSE,
  silent = FALSE,
  checkMPs = FALSE,
  dropHist = FALSE,
  extended = FALSE
)

multiMSE(
  MOM = MSEtool::Albacore_TwoFleet,
  MPs = list(list(c("AvC", "DCAC"), c("FMSYref", "curE"))),
  Hist = FALSE,
  silent = FALSE,
  parallel = TRUE,
  checkMPs = FALSE,
  dropHist = TRUE,
  extended = FALSE
)

Arguments

MOM

A multi-fleet multi-stock operating model (class MOM)

parallel

Logical or a named list. Should MPs be run using parallel processing? See Details for more information.

silent

Should messages be printed out to the console?

multiHist

An Historical Simulation object (class multiHist)

MPs

A matrix of methods (nstock x nfleet) (character string) of class MP

checkMPs

Logical. Check if the specified MPs exist and can be run on SimulatedData?

dropHist

Logical. Drop the (very large) multiHist object from the returned MMSE object? The multiHist object can be (re-)created using SimulateMOM or kept in MMSE@multiHist if dropHist=FALSE

extended

Logical. Return extended projection results? if TRUE, MMSE@Misc$extended is a named list with extended data: FM for overall F across fleets [nsim, nstock, n_age, nMP, proyears, nareas]. Misc slot in MMSE@PPD will also contain StockPars, FleetPars, and ReferencePoints

Hist

Should model stop after historical simulations? Returns a list containing all historical data

Value

Functions return objects of class MMSE and multiHist #'

  • SimulateMOM - An object of class multiHist

  • ProjectMOM - An object of class MMSE

  • multiMSE - An object of class MMSE

Details

Running MPs in parallel

For most MPs, running in parallel can actually lead to an increase in computation time, due to the overhead in sending the information over to the cores. Consequently, by default the MPs will not be run in parallel if parallel=TRUE (although other internal code will be run in parallel mode).

To run MPs in parallel, specify a named list with the name of the MP(s) assigned as TRUE. For example,parallel=list(AvC=TRUE) will run the AvC MP in parallel mode.

Functions

  • SimulateMOM(): Simulate historical dynamics for multi-OM

  • ProjectMOM(): Run Forward Projections for a MOM object

  • multiMSE(): Run a multi-stock, multi-fleet MSE

Author

T. Carruthers and A. Hordyk