That function was ported from the sna R package, and we used the same defaults.
In the next version of igraph a completely new implementation of this function is included, and the new version does exactly the same as the original Fruchterman-Reingold paper (unlike the ported sna implementation). Best, Gabor On Mon, Jul 14, 2014 at 10:51 PM, 李甜 <[email protected]> wrote: > Hi, > The version I was using is igraph-0.6.5-msvc. I used function > igraph_layout_fruchterman_reingold from layout.c,and I want to ask a > question about this function.When I read the source code ,I found the > cooling function was set "t=maxdelta*pow(i/(double)niter,coolexp)".So I want > to know why did you set it like this and what is the theory about it?And > also why the default value of coolexp is 1.5 and the default value of > maxdelta is the number of vertices? > Hope for your reply. > Thank you. > Best regards! > > Candy > > _______________________________________________ > 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
