Re: [igraph] Fwd: scale-free/preferential attachment matrix

[Sebastián Goinheix]

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 <address@hidden>:

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
http://cana.usc.edu/vegayon

On Wed, Dec 21, 2016 at 9:21 AM, Sebastián Goinheix <address@hidden> 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.

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