邻接矩阵不对称的错误答案

【问题标题】：Error that the adjacency matrix is not symmetric邻接矩阵不对称的错误
【发布时间】：2021-05-10 05:06:34
【问题描述】：

我的数据集如下，我想创建一个网络，但错误是我的邻接矩阵不是对称的，我是 R 新手，我不知道如何将我的数据转换为对称邻接矩阵，可以有人帮帮我吗？

df2:
17  "RobertKennedyJr" "RobertKennedyJr "             
18  "Real_Sheezzii"   "Real_Sheezzii "               
19  "Kellie_Martin"   "Kellie_Martin "               
20  "ThatsOurWaldo"   "ThatsOurWaldo "               
21  "SCN_Nkosi"       "SCN_Nkosi "                   
22  "azsweetheart013" "azsweetheart013 "             
23  "KYourrights"     "KYourrights KathyConWom"      
24  "GowTolson"       " KathyConWom"                 
25  "Peterpu52451065" " KathyConWom"                 
26  "Jifchoppa"       " KathyConWom"                 
27  "ClaraLpz3"       " KathyConWom"                 
28  "Anna5705"        " KathyConWom"                 
29  "Brizzle254"      " KathyConWom"                 
30  "JackSpa02102454" " KathyConWom"

我尝试过的代码

library("igraph")
library("network")
library("statnet")
relationsp <- as.matrix(df2)
relationsp



net <- as.network(x = mat, # the network object
                  directed = TRUE, # specify whether the network is directed
                  loops = FALSE, # do we allow self ties (should not allow them)
                  matrix.type = "adjacency" # the type of input
)

【问题讨论】：

您使用了matrix.type = "adjacency"，但您的矩阵看起来实际上是一个边缘列表。试试matrix.type = "edgelist"

标签： r graph igraph statnet

【解决方案1】：

如果你应用igraph包，你应该使用graph_from_data_frame创建图形对象net，然后get.adjacency得到邻接矩阵，例如，

> net <- graph_from_data_frame(dat)

> get.adjacency(net, sparse = FALSE)
                RobertKennedyJr Real_Sheezzii Kellie_Martin GowTolson ClaraLpz3
RobertKennedyJr               1             0             0         0         0
Real_Sheezzii                 0             1             0         0         0
Kellie_Martin                 0             0             1         0         0
GowTolson                     0             0             0         0         0
ClaraLpz3                     0             0             0         0         0
KathyConWom                   0             0             0         0         0
                KathyConWom
RobertKennedyJr           0
Real_Sheezzii             0
Kellie_Martin             0
GowTolson                 1
ClaraLpz3                 1
KathyConWom               0

【讨论】：