Thank you, i'll try in this way
-------- *Sebastián Goinheix*Instituto de Economía - UdelaR Tel: 24001369 (int. 116) *Por favor, evite imprimir este correo.* 2016-12-27 16:52 GMT-03:00 George Vega Yon <[email protected]>: > Let M={m_ij} be a square matrix of size n, then m_ij = 1 iff x_j="A" and i > != j. If you want to build something like that, then this should work: > > rm(list=ls()) > > x <- c("A", "A", "B", "B", "A") > y <- rep("A", length(x)) > > # An entry in mat will be 1 iff target == "A" > M <- outer(y, x, "==") > M[] <- as.integer(M) > diag(M) <- 0 > > dimnames(M) <- list(x,x) > M > > # A nicer way of printing it > library(Matrix) > methods::as(M, "dgCMatrix") > > > methods::as(M, "dgCMatrix") > 5 x 5 sparse Matrix of class "dgCMatrix" > A A B B A > A . 1 . . 1 > A 1 . . . 1 > B 1 1 . . 1 > B 1 1 . . 1 > A 1 1 . . . > > > Best, > > George G. Vega Yon > +1 (626) 381 8171 <(626)%20381-8171> > http://cana.usc.edu/vegayon > > On Tue, Dec 27, 2016 at 11:41 AM, Sebastián Goinheix <[email protected]> > wrote: > >> 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 >>>> >>>> >>> >> >> _______________________________________________ >> 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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