按标签对igraph图形进行分组 [英] Subset igraph graph by label

问题描述

我正在尝试通过边缘特征(如其标签)对igraph图形进行子集化.在一个可复制的示例中，我做了一点改动就从另一个帖子中偷偷摸摸偷了，我希望能够将最佳朋友"关系(BF)与家庭关系"(FAM)分开:

I am trying to subset a igraph graph by an edge characteristics (like its label). In the reproducible example I have shamelessly stolen from another post with a little modification, I would like to be able to separate the Best Friend ties (BF) from the Family ties (FAM):

edges <- matrix(c(103, 86, 24, 103, 103, 2, 92, 103, 87, 103, 103, 101, 103, 44), ncol=2, byrow=T)
g <- graph(as.vector(t(edges)))
E(g)[c(2:4,7)]$label<-"FAM"
E(g)[c(1,5,6)]$label<-"BF"

到目前为止，我能做的最好的事情就是显示具有一种领带类型的边缘:

The best I can do so far is display the edges which have one type of tie:

E(g)[E(g)$label=="BF"]
V(g)[E(g)$label=="BF"]

推荐答案

如何:

gfam <- subgraph.edges(graph=g, eids=which(E(g)$label=="FAM"), delete.vertices = TRUE)
gbf <- subgraph.edges(graph=g, eids=which(E(g)$label=="BF"), delete.vertices = TRUE)

有关igraph/网络分析教程/无耻插件的建议: http://sna.stanford.edu/rlabs .php

Suggestion for igraph/network analysis tutorial/shameless plug: http://sna.stanford.edu/rlabs.php

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