Identify points in Scatterplot (qplot)

Question

Is there a way to identify (means: show the observation number) some points in a Scatterplot (using qplot()) such as identify does for plot()?

Best regards, Sarah

Answer 1

Try this modified from the link I provided above

dat <- data.frame(x = rnorm(10), y = rnorm(10), label = seq(1:10))
ggplot(dat, aes(x,y)) + geom_point() +
  geom_text(data = dat, aes(x,y, label = label), hjust = 2)