***** To join INSNA, visit http://www.sfu.ca/~insna/ ***** SocNetters, I am working on a small java program for drawing valued undirectional graphs/networks while it calculates some network indices. However, I cannot find a suitable algorithm for calculating geodesics and diameters. I could, I guess, calculate the geodesic by dichotomizing the matrix and calculating the power matrices until all the blanks are filled in (Shimbel-style) - but is that the best algorithm for calculating the geodesic? And what algorithms are available for calculating diameters? All I can think of is a recursive n2-iterative djikstra solution! I currently store the network as a graph (nodes as objects and edges as objects referring to two node-objects) but I would prefer to calculate geodesics and diameters from sociomatrices (which poses problems with using the djikstra, right?) Thanks for any advice! Yours, Carl _____________________________________________________________________ SOCNET is a service of INSNA, the professional association for social network researchers (http://www.sfu.ca/~insna/). To unsubscribe, send an email message to [log in to unmask] containing the line UNSUBSCRIBE SOCNET in the body of the message.