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