I have the following ggplot, with a simple geom_tile, the challange I'm facing is having the colored squares 'fill' the actual minor and major axis, as it stands the colored squares are in the center of the X and Y axis labels.
I've tried:
scale_x_discrete(expand = c(0, 0))
scale_y_discrete(expand = c(0, 0))
plot.margin = margin(1, 1, 1, 1, "in")
coord_fixed(ratio=1)