从igraph中的图形中删除选定的短路径
亲爱的社区成员: 我想问一下,是否有一种方法可以选择在igraph上绘制哪些节点。我正在运行以下代码:从igraph中的图形中删除选定的短路径,r,igraph,vertices,subgraph,R,Igraph,Vertices,Subgraph,亲爱的社区成员: 我想问一下,是否有一种方法可以选择在igraph上绘制哪些节点。我正在运行以下代码: library(igraph) g <- graph.adjacency( as.matrix(as.dist(cor(t(POS_testing), method="pearson"))), mode="undirected", weighted=TRUE, diag=FALSE ) g <- simplify(g, remove.multiple=TRU
library(igraph)
g <- graph.adjacency(
as.matrix(as.dist(cor(t(POS_testing), method="pearson"))),
mode="undirected",
weighted=TRUE,
diag=FALSE
)
g <- simplify(g, remove.multiple=TRUE, remove.loops=TRUE)
g <- delete_edges(g, E(g)[which(E(g)$weight<0.9)])
这也不管用
接下来,我尝试添加_边(只添加这些边,看看是否有效):
t我们需要POS\u测试
重现您的示例,但尝试一下:
你真是个天才。非常感谢你!对这就解决了问题。我不能点击我名声不好的“Up”bc,但请知道我真诚地感谢你!:-)不客气@Pursia!不要担心升级投票,你可以接受SO社区的答案:-)
V(g)$comp <- components(g)$membership
V(g)$comp
[1] 1 2 3 4 3 5 6 7 3 8 9 10 11 12 13 14 15 16 3 3 3 17 18 19 20 15 3 21 3
[30] 3 3 3 22 23 3 3 3 3 24 25 3 26 27 28 3 29 3 3 3 30 31 3 3 3 3 3 3 32
[59] 3 33 3 3 34 35 3 3 28 28 36 37 38 3 39 28 3 3 3 3 40 21 21 3 41 3 3 42 3
[88] 3 3 3 3 3 43 44 3 45 3 46 3 47 48 3 3 3 3 3 3 49 3 3 3 3 50 3 3 3
[117] 3 51 3 3 52 53 52 52 54 55 52 3 56 57 58 55 59 3 60 61 3 62 3 63 64 65 66 67 3
[146] 3 3 3 68 3 69 64 70 71 3 72 3 73 74 3 3 75 3 3 3 3 32 76 3 77 3 78 3 3
[175] 79 80 3 81 82 3 3 73 3 3 3 83 84 85 73 3 3 3 3 3 86 32 87
g <- induced_subgraph(g, V(g)$comp == 3)
V(g)$comp
[1] 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3
[45] 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3
[89] 3 3 3 3 3 3 3 3
t <- delete_vertices(g, comps$Var1)
V(g)$comp <- c(rep(3, 96), rep(21, 3), rep(28, 4), rep(32, 3), rep(52, 4), rep(73, 3)).
t <- add_edges(g, c(which(V(g)$comp == 3), which(V(g)$comp == 21), which(V(g)$comp == 28)))
g <- induced_subgraph(g, c(V(g)$comp == 3 & V(g)$comp == 21 & V(g)$comp ==29))