Is it possible for matlab to convert a graph into an adjacency matrix?

so far i have found related sites, but don't know how to use them possible to recommend which is the best method? http://www.ams.jhu.edu/~ers/matgraph/

http://www.mathworks.com/products/bioinfo/demos.html?file=/products/demos/shipping/bioinfo/graphtheorydemo.html#18

http://www.mathworks.com/matlabcentral/fileexchange/4518

Answer 1

[Walter Roberson]

What data structure is currently being used to represent your graph? Is it defined by edges, defined by vertices, is it a object drawn on the screen whose data can be extracted using get(), or is it an image you have to interpret to determine the vertices and connections?

[jy tan]

i think it's currently defined by edges, vertices, in a gml file

[Walter Roberson]

GML as in Geography Markup Language? If so then looking around a little, I do not find any direct way to read such files in MATLAB. I do, though, find a Java package for dealing with them, that you should be able to use from MATLAB; see http://gcmd.nasa.gov/records/GML4J.html

Answer 2

[jy tan]

is it possible to provide any clue how to use the above url?

[Walter Roberson]

Not usefully until we have a good handle on the data format. A lot of graphs come defined in terms of adjacency matrices so possibly once the data is read in, there would be no operation needed.