[R] Label

Val v@|kremk @end|ng |rom gm@||@com
Fri Apr 3 04:29:24 CEST 2020

Hi all,

I have a sample of data set,

dat <- read.table(header=TRUE, text='Lab count
A 24
B 19
C 30
D 18')

barplot(dat$count, names.arg=c("A", "B", "C","D"),
        ylim = c(0,30),
        ylab = "Count",
        xlab = "Grade")

I want add the number of counts at the top of each bar plot. How can I do that?
Thank you in advance

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