A function to plot a top and bottom graph on the same chart. Intended for internal use only.
plot.top.bottom(f.top, f.bottom, top.scale=0.95, bottom.scale=0.1)
The function to call for ploting the top graph.
The function to call for ploting the bottom graph.
A number between zero and 1 indicating the bottom of the top graph.
A number between zero and 1 indicating the top of the bottom graph.
NULL invisibly. This function is called for its side effects.
Main use is to plot the legend of a graph in the “bottom.”