Description of size

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size

PURPOSE

size(g) --- returns [nv,ne] for the graph

SYNOPSIS

function [sz,tz] = size(g)

DESCRIPTION

 size(g) --- returns [nv,ne] for the graph

CROSS-REFERENCE INFORMATION

This function calls:

• ne ne(g) --- number of edges in g or ne(g,h) --- check for inequality
• nv nv(g) --- number of vertices in g

This function is called by:

• add add --- add edge(s) to the graph
• alpha [a,S] = alpha(g) --- indepencence number
• cayley cayley(g,perms) -- create a Cayley graph (undirected)
• cdraw cdraw(g,coloring) -- draw g with a given vertex coloring
• chromatic_poly chrompoly(g) --- find the chromatic polynomial of g
• delete delete --- delete vertices or edges from a graph
• distxy distxy(g) -- give g a distance based embedding
• embed embed --- create an embedding for a graph
• eq yn = eq(g,h) --- check if two graphs are equal (identical)
• graph graph: constructor for the graph class
• hasxy hasxy(g) --- determine if an embedding has been created for g
• incidence_matrix incidence_matrix(g) --- return the vertex/edge incidence matrix.
• interval_graph interval_graph(g,ilist) --- create an interval graph
• iso [yn,p] = iso(g,h,options) --- is g isomorphic to h?
• line_graph line_graph(g,h) --- set g to be the line graph of h
• ne ne(g) --- number of edges in g or ne(g,h) --- check for inequality
• random_planar random_planar(g,n) --- create a random planar triangulation
• sgf sgf --- simple graph format: a 2-column matrix representation
• sl2graph sl2graph(g,p) -- create an SL(2,p) graph

SOURCE CODE

0001 function [sz,tz] = size(g)
0002 % size(g) --- returns [nv,ne] for the graph
0003 
0004 if nargout >= 2
0005     sz = nv(g);
0006     tz = ne(g);
0007 else
0008     sz = [nv(g),ne(g)];
0009 end

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