ggraph 在 geom_node_point 中使用填充和颜色
ggraph use fill and color in geom_node_point
我正在尝试制作一个样本自我网络图,但使用“填充”为节点着色对我不起作用。这可能是一个微不足道的问题,但我无法弄清楚问题所在。这是我的代码:
library(tidyverse)
library(igraph)
library(ggraph)
library(tidygraph)
library(ggplot2)
edges <- read.table(text =
"ego wave fid1 fid2 fid3 fid4 fid5
Ego 1 Friend_A Friend_B Friend_C NA Friend_D
Ego 2 Friend_E Friend_F NA NA Friend_G
Ego 3 Friend_H NA Friend_I Friend_G Friend_J
Ego 4 Friend_H NA NA NA NA
Ego 5 Friend_K NA NA NA Friend_F", header = TRUE) %>%
mutate_all(function(x) gsub("_"," ",x)) %>%
pivot_longer(.,
cols = c(fid1:fid5)) %>%
select(., ego, alter = value, wave) %>% na.omit()
ego <- as.data.frame(edges$ego) %>%
rename("id" = "edges$ego")
alter <- as.data.frame(edges$alter) %>%
rename("id" = "edges$alter")
nodes <- bind_rows(ego, alter) %>% distinct() %>%
mutate(label = case_when(id == "Ego" ~ 1,
TRUE ~ 0))
g1 <- graph_from_data_frame(d = filter(edges, wave == 1), vertices = nodes, directed = TRUE) %>%
delete.vertices(., which(degree(.)==0))
as_tbl_graph(g1) %>%
create_layout(., layout = 'stress') %>%
ggraph(.) +
geom_edge_link(color = "grey",
arrow = arrow(type = "closed",
angle = 25,
length = unit(1.5, 'mm')),
end_cap = circle(3.5, 'mm'),
width = 0.5, show.legend = FALSE) +
geom_node_point(aes(fill = factor(label)), size = 7, color = "black") +
scale_fill_hue(l=40) +
geom_node_text(aes(label = name), vjust = -1) +
theme_graph()+
theme(legend.position = "none")+
labs(title = "Wave 1")
用这段代码我得到了这个情节:
但是,我的目标是让节点由标签变量着色(其中 ego 的颜色不同于 alters),并在每个节点周围有一个黑色轮廓。知道我在这里做错了什么吗?
更新
通过 tjebo 的输入(非常感谢!)(“...并且在每个节点周围都有一个黑色轮廓”)的解决方案可以是:
- 更改此行
geom_node_point(aes(fill = factor(label)), size = 7, color = "black") +
- 至
geom_node_point(aes(fill = factor(label)), shape = 21, size = 7, color = "black") +
输出
先试试
更改:geom_node_point(aes(fill = factor(label)), size = 7, color = "black") +
到 geom_node_point(aes(color = factor(label)), size = 7) +
这是对我上面的评论的扩展,也是一个答案。例子直接取自?geom_node_point
.
你基本上问了一个“如何改变点的填充和颜色”的问题,已经回答了很多次了。方法当然不止一种,下面我只是用了一种不同的形状。
library(ggraph)
#> Loading required package: ggplot2
library(tidygraph)
gr <- create_notable('bull') %>%
mutate(class = sample(letters[1:3], n(), replace = TRUE))
ggraph(gr, 'stress') +
geom_node_point(aes(fill = class), shape = 21, size = 7, color = "black")
由 reprex package (v1.0.0)
于 2021-04-05 创建
我正在尝试制作一个样本自我网络图,但使用“填充”为节点着色对我不起作用。这可能是一个微不足道的问题,但我无法弄清楚问题所在。这是我的代码:
library(tidyverse)
library(igraph)
library(ggraph)
library(tidygraph)
library(ggplot2)
edges <- read.table(text =
"ego wave fid1 fid2 fid3 fid4 fid5
Ego 1 Friend_A Friend_B Friend_C NA Friend_D
Ego 2 Friend_E Friend_F NA NA Friend_G
Ego 3 Friend_H NA Friend_I Friend_G Friend_J
Ego 4 Friend_H NA NA NA NA
Ego 5 Friend_K NA NA NA Friend_F", header = TRUE) %>%
mutate_all(function(x) gsub("_"," ",x)) %>%
pivot_longer(.,
cols = c(fid1:fid5)) %>%
select(., ego, alter = value, wave) %>% na.omit()
ego <- as.data.frame(edges$ego) %>%
rename("id" = "edges$ego")
alter <- as.data.frame(edges$alter) %>%
rename("id" = "edges$alter")
nodes <- bind_rows(ego, alter) %>% distinct() %>%
mutate(label = case_when(id == "Ego" ~ 1,
TRUE ~ 0))
g1 <- graph_from_data_frame(d = filter(edges, wave == 1), vertices = nodes, directed = TRUE) %>%
delete.vertices(., which(degree(.)==0))
as_tbl_graph(g1) %>%
create_layout(., layout = 'stress') %>%
ggraph(.) +
geom_edge_link(color = "grey",
arrow = arrow(type = "closed",
angle = 25,
length = unit(1.5, 'mm')),
end_cap = circle(3.5, 'mm'),
width = 0.5, show.legend = FALSE) +
geom_node_point(aes(fill = factor(label)), size = 7, color = "black") +
scale_fill_hue(l=40) +
geom_node_text(aes(label = name), vjust = -1) +
theme_graph()+
theme(legend.position = "none")+
labs(title = "Wave 1")
用这段代码我得到了这个情节:
但是,我的目标是让节点由标签变量着色(其中 ego 的颜色不同于 alters),并在每个节点周围有一个黑色轮廓。知道我在这里做错了什么吗?
更新
通过 tjebo 的输入(非常感谢!)(“...并且在每个节点周围都有一个黑色轮廓”)的解决方案可以是:
- 更改此行
geom_node_point(aes(fill = factor(label)), size = 7, color = "black") +
- 至
geom_node_point(aes(fill = factor(label)), shape = 21, size = 7, color = "black") +
输出
先试试
更改:geom_node_point(aes(fill = factor(label)), size = 7, color = "black") +
到 geom_node_point(aes(color = factor(label)), size = 7) +
这是对我上面的评论的扩展,也是一个答案。例子直接取自?geom_node_point
.
你基本上问了一个“如何改变点的填充和颜色”的问题,已经回答了很多次了。方法当然不止一种,下面我只是用了一种不同的形状。
library(ggraph)
#> Loading required package: ggplot2
library(tidygraph)
gr <- create_notable('bull') %>%
mutate(class = sample(letters[1:3], n(), replace = TRUE))
ggraph(gr, 'stress') +
geom_node_point(aes(fill = class), shape = 21, size = 7, color = "black")
由 reprex package (v1.0.0)
于 2021-04-05 创建