I am trying to plot a coefficient number for each state of Argentina and I want to label the extreme higher values as "Similar Income" and label the lowest as "Different Income".
I have something like this
ggplot(arg_sf) + geom_sf(col = NA, aes(fill=(VALORES))) + scale_fill_gradient(low = "green", high = "green4")
So far this is my result and it is exactly what i want, but i would like to remove the legends and add two in the extremes, with the text i mentioned before: green4="Similar Income" and green="Different Income"
Do you have any hint about how to solve it?