YEs, but what is wrong with "weight=function (x) unique (x)" or "weight='first'" ?
G. On Sun, Nov 24, 2013 at 12:28 PM, Hermann Norpois <[email protected]> wrote: > Yes, the weights (between multiple vertices) are the same. The vertices are > snps and the weights LDs. > Thanks. > > > > 2013/11/24 Gábor Csárdi <[email protected]> >> >> On Sun, Nov 24, 2013 at 11:57 AM, Hermann Norpois <[email protected]> >> wrote: >> > Hello, >> > I have an undirected graph g and I used >> > >> > g <- simplify (g) >> > >> > to remove multiple edges. The problem is that I dont find the correct >> > syntax for edge.attr.comp. I want my weights (for E(g)$weight) not being >> > altered. The weights should not be touched at all. I just want multiple >> > edges to vanish. >> >> You need to do _something_ with the weights, because you are merging >> multiple edges into a single one, and these edges potentially have >> different weights. You cannot have them "not to be touched at all". >> >> > I tried >> > g <- simplify (g, edge.attr.comb=list (weight=function (x) unique (x), >> > name="ignore")) >> >> I see. So you are sure that multiple edges between two vertices always >> have the same weight? Then this is a good solution. >> >> > and it seems to work but I am not happy with it. >> >> Why? >> >> > Could you please help to ameliorate the expression? >> >> You can say weight="first" which is the same, if all the weights are >> the same, but how much better is that? >> >> G. >> >> > Thanks >> > Hermann >> > >> > _______________________________________________ >> > 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 > > > > _______________________________________________ > 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
