如何在R中模拟具有分类性或同质性的图? [英] How to simulate a graph with Assortativity or Homophily in R?

问题描述

在R中，我当前正在使用软件包igraph.我想知道是否有任何方法可以模拟具有同构或分类结构的图-还是其他R包允许这样做.谢谢！

In R, I am currently working with the package igraph. I am wondering if there are any ways to simulate graphs with a homophilic or assortativity structure to it -- or if other R packages allow for this. Thanks!

推荐答案

您是否看过 ergm 包?使用指数随机图模型，您可以模拟带有nodematch项的分类网络.有关该术语的说明，请参见?"ergm-terms".

Have you looked at the ergm package? Using an exponential random graph model you can simulate an assortative network with a nodematch term. See ?"ergm-terms" for a description of the term.

library(ergm)

test.net = as.network(matrix(0,10,10), directed = F) #10-node network
test.net%v%"class" = sample(c('1','2'), 10, replace = T) #nodal attribute

simulate(或simulate.formula)一个网络，该网络的节点属性控制密度(edges)，同质性控制(nodematch):

simulate (or simulate.formula) a network with a term that controls density (edges) and one that controls homophily (nodematch) on the nodal attribute:

test.sim = simulate(test.net ~ edges + nodematch("class"), coef = c(-1, 4))
plot(test.sim, vertex.col = as.numeric(test.net%v%"class"), vertex.cex = 2)

您可以使用asIgraph从 intergraph 包.

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