In R, how to make a boxplot?

Question

My input table has two columns like this:

x    y
1    187
2    235
3    857
3    253
2    955
1    267

I want to make a boxplot of the y values

Answer 1

foo <- data.frame(x=rep(1:5,each=20),y=rnorm(100))
with(foo,boxplot(y~x))