Target setting method class

This class is used to represent methods for setting targets. Only experts should use the fields and methods for this class directly.

See also

Other classes: ConservationModifier-class, ConservationProblem-class, Constraint-class, Decision-class, MultiConservationProblem-class, MultiObjApproach-class, Objective-class, OptimizationProblem-class, Penalty-class, Portfolio-class, Solver-class, Target-class, Weight-class

Public fields

name

character value with name of method.

type

character value denoting the target type.

fun

function for calculating targets.

args

list containing arguments.

frame

defused `call for generating error messages.

Methods

Public methods

• TargetMethod$new()

• TargetMethod$print()

• TargetMethod$calculate_targets()

• TargetMethod$calculate_targets_km2()

• TargetMethod$calculate_relative_targets()

• TargetMethod$calculate_absolute_targets()

• TargetMethod$clone()

---

TargetMethod$new()

Initialize new object.

Usage

TargetMethod$new(name, type, fun, args, frame)

Arguments

name

character value with name of method.

type

character value denoting the target type. Available options include "relative" and "absolute".

fun

function for calculating targets.

args

list containing arguments.

frame

defused `call for generating error messages.

Returns

A new Method object.

---

TargetMethod$print()

Print the object.

Usage

TargetMethod$print(...)

Arguments

...

not used.

Returns

Invisible TRUE.

---

TargetMethod$calculate_targets()

Calculate targets expressed in the type of units defined for the method (per $type).

Usage

TargetMethod$calculate_targets(x, features, call = NULL)

Arguments

x

problem() object.

features

integer feature indices.

call

NULL or calling environment.

Returns

A numeric vector with target values.

---

TargetMethod$calculate_targets_km2()

Calculate targets as km².

Usage

TargetMethod$calculate_targets_km2(x, features, call = NULL)

Arguments

x

problem() object.

features

integer feature indices.

call

NULL or calling environment.

Returns

A numeric vector with target values expressed in km².

---

TargetMethod$calculate_relative_targets()

Calculate targets as km².

Usage

TargetMethod$calculate_relative_targets(x, features, call = NULL)

Arguments

x

problem() object.

features

integer feature indices.

call

NULL or calling environment.

Returns

A numeric vector with target values expressed as relative units.

---

TargetMethod$calculate_absolute_targets()

Calculate targets expressed as absolute units.

Usage

TargetMethod$calculate_absolute_targets(x, features, call = NULL)

Arguments

x

problem() object.

features

integer feature indices.

call

NULL or calling environment.

Returns

A numeric vector with target values expressed as absolute units.

---

TargetMethod$clone()

The objects of this class are cloneable with this method.

Usage

TargetMethod$clone(deep = FALSE)

Arguments

deep

Whether to make a deep clone.