No output from ggplot

问题

Sorry to bother you with what is for sure a very simple mistake, but I still cannot figure it out by myself:

library(ggplot2)

X = rep(c(1:6),3)
Y = rep(c(1:6),3)
group = rep(c(1:3), each = 6)

data = data.frame(X = X, Y = Y, group = group)

ggplot(data, aes(x = X, y = Y, group = group)) + geom_point() 

I do not get any output from this, no figure is created. What am I doing wrong here?

Thanks a lot in advance! Gero

回答1:

Try print the plot if you are calling it from another function or in Shiny:

myplot <- ggplot(data, aes(x = X, y = Y, group = group)) + geom_point() 

print(myplot)

来源：https://stackoverflow.com/questions/46034581/no-output-from-ggplot