Dear Mandy, As far as I know, Burt's constraint scores can be calculated on an undirected graph without problems; even the R manual page for the constraint() function uses an undirected graph in the example:
http://igraph.sourceforge.net/doc/R/constraint.html If you think you are getting incorrect results, feel free to send me the graph you are working with and I'll take a look at it. Best, Tamas On 6 Nov 2012, at 17:09, Amanda Schierz <[email protected]> wrote: > Hi > > Can Burt's Structural Holes Constraint be conducted on an undirected graph? > > I ran Constraint on an undirected graph and the results were opposite to what > I expected, as in High transitivity meant low constraint and vice versa. I > then thought that maybe Constraint can't be calculated for an undirected > graph, > > Many thanks, as always > Mandy > > The Institute of Cancer Research: Royal Cancer Hospital, a charitable Company > Limited by Guarantee, Registered in England under Company No. 534147 with its > Registered Office at 123 Old Brompton Road, London SW7 3RP. > > This e-mail message is confidential and for use by the addressee only. If the > message is received by anyone other than the addressee, please return the > message to the sender by replying to it and then delete the message from your > computer and network. > _______________________________________________ > igraph-help mailing list > [email protected] > https://lists.nongnu.org/mailman/listinfo/igraph-help _______________________________________________ igraph-help mailing list [email protected] https://lists.nongnu.org/mailman/listinfo/igraph-help
