Ggraph似乎无法显示图例

我想根据与节点关联的值为节点创建不同的大小

我得到的是这些奇怪的数字表情符号，而不是我所期望的图例标签

我在linux机器上使用RStudio服务器，我在ggplot中没有出现此错误

这是我的想象

这是我的密码

library(GGraph)
library(network)

netval1 <-
  network(netmat1_matrix, matrix.type = "edgelist")

netval1_tidy <-
    as_tbl_graph(netval1) 

ggraph(netval1_tidy) +
  geom_edge_link() + 
  geom_node_point(aes(size = (c))) +
  theme_graph()

---

你的审美观在这里似乎是个问题。考虑下面的样本数据。

num_nodes <- 10

my_sociomatrix <- matrix(round(runif(num_nodes*num_nodes)), # edge values
                         nrow = num_nodes, #nrow must be same as ncol
                         ncol = num_nodes)

diag(my_sociomatrix) <- 0

net <- as.network(x = my_sociomatrix, # 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
)

network.vertex.names(net) <- LETTERS[1:10]

# Create the variable
gender <- c(rep("Female",num_nodes/2),rep("Male",num_nodes/2))

# Add it to the network object
set.vertex.attribute(net, # the name of the network object
                     "Gender", # the name we want to reference the variable by in that object
                     gender # the value we are giving that variable
) 

age <- round(rnorm(num_nodes,20,3))
set.vertex.attribute(net,"Age",age)

summary.network(net, # the network we want to look at
                print.adj = FALSE # if TRUE then this will print out the whole adjacency matrix.
)

num_nodes <- 10

my_sociomatrix <- matrix(round(runif(num_nodes*num_nodes)), # edge values
                         nrow = num_nodes, #nrow must be same as ncol
                         ncol = num_nodes)

diag(my_sociomatrix) <- 0

net <- as.network(x = my_sociomatrix, # 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
)

network.vertex.names(net) <- LETTERS[1:10]

# Create the variable
gender <- c(rep("Female",num_nodes/2),rep("Male",num_nodes/2))

# Add it to the network object
set.vertex.attribute(net, # the name of the network object
                     "Gender", # the name we want to reference the variable by in that object
                     gender # the value we are giving that variable
) 

age <- round(rnorm(num_nodes,20,3))
set.vertex.attribute(net,"Age",age)

summary.network(net, # the network we want to look at
                print.adj = FALSE # if TRUE then this will print out the whole adjacency matrix.
)

ggraph(net) +
  geom_edge_link() + 
  geom_node_point(aes(size=age/5)) +
  theme_graph()