如何使用矩阵显示R中的关系? [英] How to use matrix to show relationship in R?

问题描述

我在这里有一个列表x:

I have a list x here:

我想展示这样的元素之间的关系:

I want to show the relationship between the elements like this:

有人可以告诉我如何在R中执行此操作吗? 非常感谢你！

Can anyone tell me how to do this in R? Thank you very much!

推荐答案

首先，从原始列表中构建所有对的矩阵:

First, build a matrix of all pairs from your original list:

L <- list(c("John", "Mary", "Jack"), c("John", "Wendy"), c("Mary", "Wendy"))
x <- matrix(unlist(lapply(L, combn, 2, simplify = FALSE)), ncol = 2)

然后，使用此处显示的方法之一: R中的成对交互矩阵.我喜欢使用图论工具的一种:-)

Then, use one of the methods shown here: Pairwise interaction matrix in R. I like the one using graph theory tools :-)

library(igraph)
g <- graph.edgelist(x, directed = FALSE)
get.adjacency(g)

#       John Jack Mary Wendy
# John     0    1    1     1
# Jack     1    0    1     0
# Mary     1    1    0     1
# Wendy    1    0    1     0

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