How to add a condition to the geom_point size?

Question

I am trying to add a condition to geom_point size and I\'ve pasted my example below. I would like geom_point size to be 2 when n_in_stat is 4 or more, and size = 5 when n_i

Answer 1

scale_size_manual sets the sizes for a discrete variable.

geom_point(aes(size =n_in_stat>4)) + scale_size_manual(values=c(2,5))

Answer 2

also you can just use a function:

ff <- function(x){ifelse(x < 4, 5, 2)}

and then change

geom_point(aes(size = n_in_stat)) +

with

geom_point(aes(size = ff(n_in_stat))) +