选择颜色ggraph R [英] Choose color ggraph R

问题描述

我尝试绘制一个二边网络，其边缘与它们的节点之一具有相同的颜色.
例如，让我们以电影/演员二部图为例，其中有7部电影和15名演员，每个演员都有国籍.
我想让演员和一部比演员国籍相同的颜色的电影之间具有优势.

I try to plot a bipartite network with the edges of the same color than one of their nodes.
For example, let's take an movie/actor bipartite graph as an exemple, with 7 movies and 15 actors, and each actor has a nationality.
I want to have the edge between an actor and a movie of the same color than the nationality of the actor.

NG1 <- 7
NG2 <- 15
Nat <- sample(x = c("French", "English", "Italian", "American", "Chinese"), size = NG2, replace = T)
G <- graph.empty(NG1+NG2)

[这里， head(Nat)返回意大利语"英语"美国人"法语"法语"法语" ]
创建边列表的代码:

[Here, head(Nat) returns "Italian" "English" "American" "French" "French" "French"]
The code to create the edgelist:

E1 <- sample(x=1:NG1, size = 30, replace = T)
E2 <- sample(x=(NG1+1):(NG1+NG2), size = 30, replace = T)
EL <- c(rbind(E1, E2))
G <- add_edges(G, EL, nat = Nat[E2-NG1])

[这里， head(EL)返回 1 14 3 13 2 15 ]
不同的aes参数:

[Here, head(EL) returns 1 14 3 13 2 15]
The different aes arguments:

GROUP <- c(rep("Movie", NG1), rep("Act", NG2))
COL <- c(rep("Movie", NG1), Nat)
TXT <- c(as.character(1:NG1), letters[1:NG2])

现在是ggraph指令:

And now the ggraph instructions:

 ggraph(G, layout = 'kk') + 
      geom_node_point(aes(col = COL, shape = GROUP, size = 7)) + 
      geom_edge_link(aes(col = nat)) +
      geom_node_text(aes(label = TXT), size = 4)

从底部可以看到，演员Ita(意大利人)有一个蓝色节点，但与电影7的粉红色边缘相连...如何为节点(这里有6种颜色)指定调色板边缘(节点的前5种颜色)?

As you can see in the bottom, actor a, which is Italien has a blue node, but is connected with a pink edge with movie 7... How can I specify the color palette for nodes (here 6 colors) and edges (the 5 first colors of the nodes)?

我希望我已经说清楚了.

I hope that I have made clear.

推荐答案

两个小时后，我终于找到了解决方案！

After two hours, I finally found a solution !

我使用了此处定义的函数 gg_color_hue 模拟用于节点的6种颜色，然后:

I used the function gg_color_hue defined here to emulate the 6 colors used for the nodes and then:

+ scale_edge_colour_manual(values = cols[1:5])

这篇关于选择颜色ggraph R的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！