Using ggraph's circlepack layout in R

Question

I am trying to create a graph using ggraph's circlepack layout in R.

The code I am using is below.

df <- data.frame(PID = c("root", "c11111", "c22222", "c11111", "c11111"),    
                 ID = c("c11111", "c22222", "s33333", "c44444", "c55555"), 
                 size = c(1, 20000, 10000, 1, 1))

vertices <- df %>% 
  distinct(ID, size) %>% 
  add_row(ID = "root", size = 0)

mygraph <- graph_from_data_frame(df, vertices = vertices)

ggraph(mygraph, layout = 'circlepack') +
  geom_node_circle(aes(fill = size)) +
  theme_void() +
  geom_node_label(aes(label = name))

I am not sure why c22222 is not appearing within c33333 - I'm only seeing c33333.

I'd greatly appreciate any advice or ideas about what's going on.

Answer 1

Your code is actually correct, but your labels are overlapping If you add some jitter to your plot you'll see c22222

ggraph(mygraph, layout = 'circlepack') +
  geom_node_circle(aes(fill = size)) +
  theme_void() +
  geom_node_label(aes(label = name),position=position_jitter(width=.2,height=.2))

Note this plot currently does not use the size property of your graph. You should add weight=size

ggraph(mygraph, layout = 'circlepack', weight=size)