Hi Gabor, Thanks do.call works. However, how do I change parameters below within the intersection function ?
byname="auto", keep.all.vertices=FALSE Regards *Raunak Shrestha* On Fri, Nov 25, 2016 at 12:59 AM, Gábor Csárdi <[email protected]> wrote: > do.call(intersection, listg) > > See ?do.call > > Gabor > > On Fri, Nov 25, 2016 at 4:35 AM, Raunak Shrestha <[email protected]> > wrote: > > Hello, > > > > I'm trying to intersection of multiple graphs where the graph objects are > > stored in a list. > > > > For example, > > > > library(igraph) > > g1 <- graph.formula(A -- B -- C -- D) > > g2 <- graph.formula(C -- E -- D -- C) > > g3 <- graph.formula(B -- C -- D -- A) > > > > listg <- list(g1, g2, g3) > > > > If I mention individual graph objects separately, I obtain the desired > > result > > > > intersection(listg[[1]], listg[[2]], listg[[3]], keep.all.vertices = > FALSE) > > IGRAPH UN-- 2 1 -- > > + attr: name (v/c) > > + edge (vertex names): > > [1] C--D > > > > But I get the following error message when I use the list > > > > intersection(listg, keep.all.vertices = FALSE) > > Error in UseMethod("intersection") : > > no applicable method for 'intersection' applied to an object of class > > "list" > > > > Since, I need to perform intersection of a large number of graphs >20 > with > > different combination, it is not feasible to type in individual graph > > objects separately. > > Using a list would simplify my task to a greater extent. > > > > Could you please let me know how to overcome this problem,? > > > > Regards > > Raunak > > > > > > > > _______________________________________________ > > 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 >
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