I often work with ggplot2 that makes gradients nice (click here for an example). I have a need to work in the base and I think scales can be used there to create color gradients as well but I'm severely off the mark on how. The basic goal is to generate a palette of n colors that range from x color to y color. The solution needs to work in the base though. This was a starting point but there's no place to input an n.
I am well aware of:
from RColorBrewer. I'm looking more for the approach similar to how ggplot2 handles gradients that says I have these two colors and I want 15 colors along the way. How can I do that?