Hi: I tried the outer function but I couldn't fix it. The solution you suggest is another way of generate homophilia matrices (linking vertices with equal characteristics). Actually what I need is to generate links between all the nodes and those that have a specific attribute, as: A A B B B A 0 1 1 1 1 A 1 0 1 1 1 B 1 1 0 0 0 B 1 1 0 0 0 B 1 1 0 0 0
Any ideas? thank you very much! -------- *Sebastián Goinheix*Instituto de Economía - UdelaR Tel: 24001369 (int. 116) *Por favor, evite imprimir este correo.* 2016-12-21 23:24 GMT-03:00 Sebastián Goinheix <[email protected]>: > Thanks George > > > -------- > > *Sebastián Goinheix*Instituto de Economía - UdelaR > Tel: 24001369 (int. 116) > *Por favor, evite imprimir este correo.* > > 2016-12-21 16:33 GMT-03:00 George Vega Yon <[email protected]>: > >> Does this works? >> >> rm(list=ls()) >> >> x <- c("A", "A", "B", "B", "B") >> mat <- outer(x, x, "==") >> mat[] <- as.integer(mat) >> >> dimnames(mat) <- list(x,x) >> mat >> >> > mat >> A A B B B >> A 1 1 0 0 0 >> A 1 1 0 0 0 >> B 0 0 1 1 1 >> B 0 0 1 1 1 >> B 0 0 1 1 1 >> >> Best, >> >> George G. Vega Yon >> +1 (626) 381 8171 <(626)%20381-8171> >> http://cana.usc.edu/vegayon >> >> On Wed, Dec 21, 2016 at 9:21 AM, Sebastián Goinheix <[email protected]> >> wrote: >> >>> Hi, >>> >>> >>> >>> >>> I want to perform network regresion with QAP procedure (netlm function >>> of sna package). >>> I have matrices with some inter-organizational relations, and with >>> calculated matrices for homophily hypotheses through the >>> bipartite.projection function. >>> But now I need a matrix that contains links from all nodes to those that >>> have a specific attribute, say "A". For example: >>> >>> nodes attributes >>> 1 A >>> 2 A >>> 3 B >>> 4 B >>> 5 B >>> >>> Therefore, the resulting adjacency matrix will be: >>> >>> 1 2 3 4 5 >>> 1 0 1 1 1 1 >>> 2 1 0 1 1 1 >>> 3 1 1 0 0 0 >>> 4 1 1 0 0 0 >>> 5 1 1 0 0 0 >>> >>> >>> >>> I assume the sample_pa function will not work since the network is >>> based on vertex attributes >>> and >>> the model should not be random >>> . >>> >>> How can I get it in Igraph (or other)? >>> Thanks >>> >>> >>> -------- >>> >>> *Sebastián Goinheix*Instituto de Economía - UdelaR >>> Tel: 24001369 (int. 116) >>> *Por favor, evite imprimir este correo.* >>> >>> >>> _______________________________________________ >>> 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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