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 ItargetE4: A management procedure that incrementally adjusts the Effort...
A management procedure that incrementally adjusts the Effort to reach a target CPUE / relative abundance index.
Description
An effortbased version of the most biologically precautionary of two index/CPUE target MPs proposed by Geromont and Butterworth 2014.
Usage
1  ItargetE4(x, DLM_data, reps = 100, yrsmth = 5, xx = 0, Imulti = 2.5)

Arguments
x 
A position in datalimited methods data object 
DLM_data 
A datalimited methods data object 
reps 
The number of samples 
yrsmth 
Years over which to smooth recent estimates of surplus production 
xx 
Parameter controlling the fraction of mean catch to start using in first year 
Imulti 
Parameter controlling how much larger target CPUE / index is compared with recent levels. 
Details
Tested by Carruthers et al. 2015.
Value
A numeric vector of input controls
Author(s)
T. Carruthers
References
Carruthers et al. 2015. Performance evaluation of simple management procedures. Fish and Fisheries. In press.
Geromont, H.F., Butterworth, D.S. 2014. Generic management procedures for datapoor fisheries; forecasting with few data. ICES J. Mar. Sci. doi:10.1093/icesjms/fst232
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 avail: What objects of this class are available
 AvC: An MP where the TAC is average historical catch
 barplot.MSE: Plot a barplot of MSE results
 BK: Beddington and Kirkwood lifehistory MP (simple version)
 BK_CC: Beddington and Kirkwood lifehistory method combined with...
 BK_ML: Beddington and Kirkwood lifehistory analysis with...
 boxplot.DLM_data: Boxplot of TAC recommendations
 boxplot.MSE: Boxplot of MP performance from MSE object
 Can: What datalimited methods can be applied to this DLM_data...
 Cant: What methods can't be applied to this DLM data object
 CC1: Constant catch management procedure of Geromont and...
 CC4: Constant catch management procedure of Geromont and...
 CheckConverg: MSE convergence diagnostic
 ChooseEffort: Manually choose the historical relative fishing effort...
 comp: Comparison plots for individual simulations
 CompSRA: Agecompositionbased estimate of current stock depletion...
 CompSRA4010: Agecompositionbased estimate of current stock depletion...
 Cplot: Plot the median biomass and yield relative to last historical...
 CSRA: Catch at size reduction analysis
 CSRAfunc: Optimization function for CSRA
 curE: Fishing at current effort levels
 curE75: Fishing at 75 per cent of current effort levels
 DAAC: Depletion Adjusted Average Catch
 DBSRA: DepletionBased Stock Reduction Analysis
 DBSRA_40: DepletionBased Stock Reduction Analysis assuming 40 per cent...
 DBSRA4010: DepletionBased Stock Reduction Analysis paired with 4010...
 DBSRA_ML: DepletionBased Stock Reduction Analysis using mean length...
 DCAC: Depletion Corrected Average Catch
 DCAC_40: Depletion Corrected Average Catch assuming 40 per cent stock...
 DCAC4010: Depletion Corrected Average Catch paired with the 4010 rule
 DCAC_ML: DepletionBased Stock Reduction Analysis using meanlength...
 DD: Delay  Difference Stock Assessment with UMSY and MSY leading
 DD4010: Delay  Difference Stock Assessment with UMSY and MSY leading...
 DDe: Effort control version of DD  Delay  Difference Stock...
 DDe75: Effort control version of DD  Delay  Difference Stock...
 DDes: Effort searching version of DD  Delay  Difference Stock...
 DepF: Depletion Corrected Fratio
 DLMdat: Data and Operating model objects
 DLM_dataclass: Class '"DLM_data"'
 DLMDataDir: Directory of the installed package on your computer
 DLM_feaseclass: Class '"DLM_fease"'
 DLM_generalclass: Class '"DLM_general"'
 DLMtoolpackage: DataLimited Methods Toolkit
 DOM: How dominant is an MP?
 DoOpt: Optimization routine for LBSPR methods
 DTe40: Effort searching MP aiming for 40 per cent stock depletion.
 DTe50: Effort searching MP aiming for 50 per cent stock depletion.
 DynF: Dynamic Fratio MP
 EtargetLopt: Effort MP: adjust effort up/down if mean length above/below...
 Fadapt: An adaptive MP that uses trajectory in inferred suplus...
 Fdem: Demographic FMSY method
 Fdem_CC: Demographic FMSY method using catchcurve analysis to...
 Fdem_ML: Demographic FMSY method that uses mean length data to...
 Fease: MP feasibility diagnostic
 Fease_xl: Read in feasibility parameters from Excel spreadsheet
 Fleetclass: Class '"Fleet"'
 FMSYref: A reference FMSY method (uses perfect information about FMSY)
 FMSYref50: A reference FMSY method that fishes at half of FMSY (uses...
 FMSYref75: A reference FMSY method that fishes at three quarters of FMSY...
 Fratio: An FMSY/M ratio method
 Fratio4010: An FMSY/M ratio method paired with the 4010 rule
 Fratio_CC: A datalimited method that uses FMSY/M ratio and a naive...
 Fratio_ML: An FMSY/M ratio MP that uses a mean length estimator of...
 GB_CC: Geromont and Butterworth Constant Catch Harvest Control Rule
 GB_slope: Geromont and Butterworth index slope Harvest Control Rule
 GB_target: Geromont and Butterworth target CPUE and catch MP
 Gcontrol: Gcontrol MP
 getAFC: Calculate age at first capture from length at first capture...
 getmov: Optimization function to find a movement model that matches...
 getq: Optimization function that find the catchability (q where...
 HDAAC: Hybrid Depletion Adjusted Average Catch
 initializemethods: ~~ Methods for Function 'initialize' ~~
 Input: Function to run a set of input control methods
 Islope1: A management procedure that incrementally adjusts the TAC to...
 Islope4: A management procedure that incrementally adjusts the TAC to...
 IT10: Index Target 10
 IT5: Index Target 5
 Itarget1: A management procedure that incrementally adjusts the TAC...
 Itarget4: A management procedure that incrementally adjusts the TAC...
 ItargetE1: A management procedure that incrementally adjusts the effort...
 ItargetE4: A management procedure that incrementally adjusts the Effort...
 ITe10: Index Target EffortBased 10
 ITe5: Index Target EffortBased 5
 ITM: Index Target based on natural mortality rate
 joinMSE: Join multiple MSE objects together
 Jplot: Joint probability plot
 KalmanFilter: Kalman filter and RauchTungStriebel smoother
 Kplot: KOBE plot: a projection by projection plot of F/FMSY and...
 L2A: Length to age conversion
 L95target: A management procedure that adjusts the TAC up/down from...
 LBSPR: Apply LBSPR model to timeseries of catchatlength
 LBSPR_ItEff: Lengthbased SPR model with HCR that iteratively adjusts...
 LBSPR_ItSel: Lengthbased SPR model with HCR that iteratively adjusts...
 LBSPR_ItTAC: Lengthbased SPR model with HCR that iteratively adjusts TAC
 LBSPRSim: PerRecruit LengthBased Spawning Potential Ratio Simulation...
 lmmodelclass: Class '"lmmodel"'
 LstepCC1: A management procedure that incrementally adjusts the TAC...
 LstepCC4: A management procedure that incrementally adjusts the TAC...
 LstepCE1: A management procedure that incrementally adjusts the TAC...
 LstepCE2: A management procedure that incrementally adjusts the Effort...
 Ltarget1: A management procedure that incrementally adjusts the TAC to...
 Ltarget4: A management procedure that incrementally adjusts the TAC to...
 LtargetE1: A management procedure that incrementally adjusts the Effort...
 LtargetE4: A management procedure that incrementally adjusts the Effort...
 makePerf: Convert a OM object to one without observation or process...
 matlenlim: A datalimited method in which fishing vulnerability is set...
 matlenlim2: A datalimited method in which fishing vulnerability is set...
 MCD: Mean Catch Depletion
 MCD4010: Mean Catch Depletion
 minlenLopt1: This input control sets the minimum length of fish caught to...
 ML2D: Depletion and F estimation from mean length of catches
 movfit: Optimization function that returns the squared difference...
 MPStats: Calculate Statistics for MP Performance
 MRnoreal: An marine reserve in area 1 with no spatial reallocation of...
 MRreal: An marine reserve in area 1 with full reallocation of fishing...
 MSEclass: Class '"MSE"'
 NAor0: Is a value NA or zero.
 Needed: Data needed to get MPs running
 NFref: No Fishing Reference MP
 NOAA_plot: National Oceanographic and Atmospheric Administration default...
 Observationclass: Class '"Observation"'
 OMclass: Class '"OM"'
 OM_xl: Read in operating model parameters from Excel spreadsheet
 OptFun: Objective function for LBSPR methods
 ourMSE: Example MSE object used in the vignette
 ourReefFish: Example data object
 plotFun: Print out plotting functions
 plotmethods: ~~ Methods for Function 'plot' ~~
 plotOFL: A generic OFL plot for NOAA use
 PorgMSE: Example MSE object used in the vignette
 Pplot: A projection by projection plot of F/FMSY and B/BMSY
 qopt: Internal optimization function that find the catchability (q...
 Rcontrol: Harvest Control Rule using prior for intrinsic rate of...
 Rcontrol2: MP using prior for intrinsic rate of increase with a...
 replic8: Enlarge (replicate) a DLM data object to create an additional...
 Required: What methods need what data
 runInMP: Runs input control MPs on a DLM_data object.
 runMSE: Run a Management Strategy Evaluation
 runMSErobust: Run a Management Strategy Evaluation
 Sam: Conduct stock assessment
 SBT1: SBT simple MP
 SBT2: SBT complex MP
 Sense: Sensitivity analysis
 SetRecruitCycle: Function to calculate cyclic recruitment pattern given...
 slotlim: An datalimited method which sets a slot limit
 SnapMSE: Example MSE object used in the vignette
 Splot: Scatter plot of B/BMSY or B/B0 and F/FMSY
 SPmod: Surplus production based catchlimit modifier
 SPMSY: Catch trend Surplus Production MSY MP
 SPslope: Slope in surplus production MP
 SPSRA: Surplus Production Stock Reduction Analysis
 SPSRA_ML: Surplus Production Stock Reduction Analysis using a...
 Stockclass: Class '"Stock"'
 Sub: Subset MSE object by management procedure (MP) or simulation.
 summarymethods: ~~ Methods for Function 'summary' ~~
 TAC: Calculate TAC recommendations for more than one MP
 Tplot: A tradeoff plot for an MSE object
 Tplot2: A tradeoff plot for an MSE object that compares longterm...
 TradePlot: Generic Tradeoff Plot
 updateMSE: Update an MSE object with new slots
 VOI: Calculate Value Of Information
 VOI2: Calculate Value Of Information 2
 VOIplot: Yet another Value of Information Plot
 VPA: Robust Virtual Population Analysis
 wormplot: Biomass wormplot.
 writeCSV: Internal function to write CSVs for objects
 YPR: Yield Per Recruit analysis to get FMSY proxy F01
 YPR_CC: Yield Per Recruit analysis to get FMSY proxy F01 paired to a...
 YPR_ML: Yield Per Recruit analysis to get FMSY proxy F01 paired with...