I would like to highlight an open space in ggplot2 down and to the right from some point. If I include some points outside of the main plot, ggplot simply changes limits for me. However if I enforce limits, it doesn't draw a rectangle that goes out of the plot.
df <- data.frame(x=runif(10),y=runif(10))
qplot(x,y,data=df) +
annotate('rect', xmin=.25, ymin=-1, xmax=2, ymax=.25, alpha=.2) +
ylim(0,1) # try to remove me
I want to make an appearance that highlighted area stretches all the way below -1 and all the way to the right past 2.
