Display labels within pie chart

Question

Hi, i found out how to plot a pie chart using ggplot, but how to display % value inside chart?

Answer 1

See below example-

df <- data.frame(
  name = c("sindhu", "karthick", "venu"),
  marks = c(45, 43, 50)
)
ggplot(df, aes(x="", y=marks, fill=name))+
  geom_bar(stat = "identity")+ coord_polar("y", start=0)+
  theme(axis.text.x=element_blank())+
  geom_text(aes(y = marks/3 + c(0, cumsum(marks)[-length(marks)]), label = paste(marks/100,"%")))