getAngleFeatureSet: Feature: statistics of angles between nodes and their two...

In jakobbossek/salesperson: Computation of Instance Features and R Interface to the State-of-the-Art Exact and Inexact Solvers for the Traveling Salesperson Problem

Description

Feature: statistics of angles between nodes and their two nearest neighbors.

Usage

getAngleFeatureSet(x, feature.set = NULL, drop.duplicates = FALSE,
  include.costs = FALSE, normalize = FALSE, ...)

Arguments

x	[Network] Network.
feature.set	[character] Subset of angle feature sets that should be computed. Possible choices are "angle" (statistics based on the angles between nodes and their two nearest neighbors) and "cos" (statistics based on the cosine of the aforementioned angles). Per default (NULL), both feature sets will be computed.
drop.duplicates	[logical(1)] Should duplicated node coordinates be dropped? Default is FALSE.
include.costs	[logical(1)] Should costs be included as an additional feature? Default is FALSE.
normalize	[logical(1)] Additionally calculate the normalization for the features? The default is FALSE.
...	[any] Not used.

Details

In case include.costs = TRUE the output will provide up to three separate cost values: one for the initialization phase, and one for each of the feature sets that were defined in feature.set. As the initialization phase is a mandatory prerequisite for computing either of the two feature sets, the user will manually have to add the costs of the initialization phase to the costs of the respective feature set(s).

Value

[list]

jakobbossek/salesperson documentation built on July 2, 2021, 7:13 p.m.