返回ggplot2扩展主目录

geomnet

Geom ：网格图(关系图)

  geom_net(aes(from_id,to_id,fontsize), data , stat = "net",
    position = "identity", na.rm = FALSE, layout.alg,  
    directed=FALSE,selfloops=FALSE,singletons=TRUE, 
    labelon = FALSE,labelcolour = NULL, labelgeom = "text") #label参数

网格图主题 theme_net(base_size,base_family)

参数：
layout.alg,布局
directed=FALSE,箭头
selfloops=FALSE,显示循环
singletons=TRUE,单点绘制
directed箭头参数：
arrow = NULL, arrowgap = 0.01, arrowsize = 1

ggplot2主题元素的继承关系示意图

library(dplyr)
library(geomnet)
data(theme_elements)
# data step
TEnet <- fortify(as.edgedf(theme_elements$edges[,c("parent", "child")]), theme_elements$vertices)
# create a degree variable for use later
TEnet <- TEnet %>%
  group_by(from_id) %>%
  mutate(degree = sqrt(10 * n() + 1))
# plot
ggplot(data = TEnet,
       aes(from_id = from_id, to_id = to_id)) +
  geom_net(layout.alg = "fruchtermanreingold",
    aes(fontsize = degree), directed = TRUE,
    labelon = TRUE, size = 1, labelcolour = 'black',
    ecolour = "grey70", arrowsize = 0.5,
    linewidth = 0.5, repel = TRUE) +
  theme_net() +
  xlim(c(-0.05, 1.05))

献血图

library(geomnet)
data(blood)
ggplot(data = blood$edges, aes(from_id = from, to_id = to)) +
  geom_net(colour = "darkred", layout.alg = "circle", labelon = TRUE, 
           size = 15, directed = TRUE, vjust = 0.5, labelcolour = "grey80",
           arrowsize = 1.5, linewidth = 0.5, arrowgap = 0.05,
           selfloops = TRUE, ecolour = "grey40") + 
  theme_net() 

与plotly互动

library(geomnet)
# devtools::install_github("ropensci/plotly")
library(plotly)
data(blood)
bloodnet <- fortify(as.edgedf(blood$edges), blood$vertices)
p <- ggplot(data = bloodnet, aes(from_id = from_id, to_id = to_id))

# create data plot
p2 <- p + geom_net(aes(size=Predominance, colour=type, shape=rho, linetype=group_to),
             linewidth=0.75, labelon =TRUE, directed = TRUE, labelcolour="black") +
  facet_wrap(~Ethnicity) +
  scale_colour_brewer(palette="Set2") 
ggplotly(p2)