DLMtool (version 5.2)

ITe5: Index Target Effort-Based

Description

An index target MP where the Effort is modified according to current index levels (mean index over last 5 years) relative to a target level.

Index Target Effort-Based

Usage

ITe5(x, Data, reps = 100, plot = FALSE, yrsmth = 5, mc = 0.05)
ITe10(x, Data, reps = 100, plot = FALSE, yrsmth = 5, mc = 0.1)

Arguments

x

A position in a data-limited methods data object

Data

A data-limited methods data object

reps

The number of stochastic samples of the MP recommendation(s)

plot

Logical. Show the plot?

yrsmth

The number of historical years over which to average the index

mc

The maximum fractional change in the effort among years.

Value

An object of class Rec with the TAE slot(s) populated

Functions

• ITe5: Maximum annual changes are 5 per cent.

• ITe10: Maximum annual changes are 10 per cent.

Required Data

See '>Data for information on the Data object

ITe5: Ind, Iref, MPeff

ITe10: Ind, Iref, MPeff

Rendered Equations

See Online Documentation for correctly rendered equations

Details

The TAE is calculated as: $$\textrm{TAE}_y = \textrm{TAE}_{y-1} \delta$$ where \(\delta\) is \(\frac{I} {I_{\textrm{ref}}}\) averaged over last yrsmth years. \(I_{\textrm{ref}}\) is the index target (Data@Iref).

The maximum fractional change in TAE is specified in mc.

Examples

# NOT RUN {
ITe5(1, DLMtool::SimulatedData, plot=TRUE)
ITe10(1, DLMtool::SimulatedData, plot=TRUE)
# }