TSP (version 1.1-1)

TSP: Class TSP -- Symmetric traveling salesperson problem

Description

Constructor to create an instance of a symmetric traveling salesperson problem (TSP) and some auxiliary methods.

Usage

## constructor
TSP(x, labels = NULL)
## coercion
as.TSP(x)
## methods
## S3 method for class 'TSP':
n_of_cities(x)
## S3 method for class 'TSP':
image(x, order, col = gray.colors(64), ...)
## S3 method for class 'TSP':
labels(object, \ldots)
## S3 method for class 'TSP':
print(x, \ldots)

Arguments

x, object

an object (currently dist or a symmetric matrix) to be converted into a TSP or, for the methods, an object of class TSP.

labels

optional city labels. If not given, labels are taken from x.

col

color scheme for image.

order

order of cities for the image as an integer vector or an object of class TOUR.

...

further arguments are passed on.

Value

• TSP() returns x as an object of class TSP.

  n_of_cities() returns the number of cities in x.

  labels() returns a vector with the names of the cities in x.

Details

Objects of class TSP are internally represented as dist objects (use as.dist() to get the dist object).

See Also

TOUR, insert_dummy, tour_length, solve_TSP.

Examples

data("iris")
d <- dist(iris[-5])

## create a TSP
tsp <- TSP(d)
tsp

## use some methods 
n_of_cities(tsp)
labels(tsp)
image(tsp)