Objects from the Class
Objects can be created by calls of the form new("generalGraph", ...).
A generalGraph object consists of two slots, one for each possible representation:
incidenceMatrix and incidenceList.Slots
incidenceMatrix:- Object of class
"incidenceMatrix" incidenceList:- Object of class
"incidenceList"
Extends
Class "anyGraph", directly, with explicit coerce.Methods
- initialize
signature(.Object="generalGraph"):
constructs a general graph from one of the two possible representations- show
signature(object = "generalGraph"): displays the available representations of a general graph- display
signature(x = "generalGraph"): static graphical representation via package 'mathgraph'- dynamic.Graph
signature(object = "generalGraph"):
dynamic graphical representation via package 'dynamicGraph'- incidenceList<-
signature(x = "generalGraph"): sets the incidence list representation- incidenceMatrix<-
signature(x = "generalGraph"): sets the incidence matrix representation- incidenceList
signature(object = "generalGraph"): gets the incidence list representation- incidenceMatrix
signature(object = "generalGraph"): gets the incidence matrix representation- names
signature(x = "generalGraph"): gets the character vertex identifiers of a general graph- names<-
signature(x = "generalGraph"): sets the character vertex identifiers of a general graph- card
signature(object = "generalGraph"):
returns the number of vertices and the total number of edge occurrences in a general graph- isEmpty
signature(object = "generalGraph"):
a graph object is empty if all its possible representations are empty- isPresent
signature(el = "edge", ou = "generalGraph"):
an edge occurs in a graph object if it occurs in its non-empty slots- areTheSame
signature(x = "generalGraph", y = "generalGraph"):
x and y are the same if their non-empty slots represent the same graph- [
signature(x = "generalGraph"): extracts an induced subgraph- [[
signature(x = "generalGraph"): extracts the character identifier of a vertex- coerce
signature(from = "anyGraph", to = "generalGraph"):
all but directed and undirected edges are lost in the conversion- coerce
signature(from = "multiGraph", to = "generalGraph"):
no edges are lost in the conversion as every multi-graph is a general graph- coerce
signature(from = "simpleGraph", to = "generalGraph"):
no edges are lost in the conversion as every simple-graph is a general graph- coerce
signature(from = "generalGraph", to = "dg.graph"):
conversion to class 'dg.graph' of package 'dynamicGraph'- +
signature(e1 = "generalGraph", e2 = "vertexSet"):
adds a vertex set to a general graph by making the new vertices isolated- -
signature(e1 = "generalGraph", e2 = "vertexSet"):
removes a vertex set from a general graph by dropping all edges involving the vertex set- +
signature(e1 = "generalGraph", e2 = "edge"):
adds an edge to a general graph- -
signature(e1 = "generalGraph", e2 = "edge"):
removes an edge from a general graph- *
signature(e1 = "generalGraph", e2 = "vertexSet"):
restricts a general graph to a vertex set by dropping all edges involving vertices outside the vertex set