5

将图形对象作为边列表查看时，有什么方法可以显示边权重？

我想本着以下精神做一些事情：

get.edgelist(graph, attr='weight')

以便查看与节点旁边列出的权重的边缘配对，但这似乎是不允许的。我知道如何查看权重的唯一方法是将网络数据视为邻接矩阵。希望这不是唯一的方法。

4

2 回答 2

13

get.edgelist使用pkg:igraph中函数的帮助页面中的示例：

> cbind( get.edgelist(g) , round( E(g)$weight, 3 ))
      [,1] [,2] [,3]   
 [1,] "a"  "b"  "0.342"
 [2,] "b"  "d"  "0.181"
 [3,] "b"  "e"  "0.403"
 [4,] "b"  "f"  "0.841"
 [5,] "d"  "f"  "0.997"
 [6,] "e"  "g"  "0.029"
 [7,] "a"  "h"  "0.17" 
 [8,] "b"  "j"  "0.69" 
 [9,] "g"  "j"  "0.422"
于 2013-04-29T22:55:10.763 回答
3

另一种选择是get.data.frame()从igraph包中使用

# create a random graph with weighted edges      
g <- erdos.renyi.game(5, 5/10, directed = TRUE)
E(g)$weight <- runif(length(E(g)), 1, 5)

# pull nodes and edge weights
get.data.frame(g)

   from to   weight
1     1  5 4.716679
2     2  1 4.119414
3     1  2 4.535791
4     2  5 2.486553
5     3  2 4.932118
6     5  2 3.353693
7     1  3 3.003062
8     2  3 3.350118
9     1  4 2.929069
10    2  4 4.929474
11    5  4 4.333134
于 2018-08-16T21:39:13.903 回答