search

thomasp85 / ggraph

Grammar of Graph Graphics
https://ggraph.data-imaginist.com
Other
1.08k stars 116 forks source link

geom_node_point object 'Sub_Type' not found #298

Closed Chandrima-04 closed 2 years ago

Chandrima-04 commented 3 years ago

I have been trying to color the nodes in my graph:

aro <- read_csv("Aro_Deg.csv")
u1 <- unique(unlist(aro[, c("to", "from")]))
name <- data.frame(matrix(unlist(u1)))
graph <- graph_from_data_frame(aro, name, directed = TRUE)

ggraph(graph, layout = 'linear', circular = T) +
  scale_color_brewer(palette="BuPu") + 
    geom_edge_link(aes(colour = factor(Sub_Type))) + 
        scale_edge_color_brewer(palette = 'Set3') +
  geom_node_text(aes(label = name), repel = TRUE, size = 1.5) + 
  geom_node_point(aes(color = factor(Sub_Type)))

This is the error I am getting:

Error in factor(Sub_Type) : object 'Sub_Type' not found

The object is certainly loaded as there is no error when I am just using it to color edge links, but when I am adding node colors, I am getting this error.

schochastics commented 2 years ago

Is Sub_Type a node attribute? From your code it seems that it is an edge attribute which cannot be used to color nodes.