Why does a boxplot in ggplot requires axis x and y?

Question

I have a variable ceroonce which is number of schools per county (integers) in 2011. When I plot it with boxplot() it only requires the ceroonce variable. A boxplot

Answer 1

ggplot(escuelas, aes(x="ceroonce", y=ceroonce))+geom_boxplot()

ggplot will interpret the character string "ceroonce" as a vector with the same length as the ceroonce column and it will give the result you're looking for.