问题
I hope this question is beyond "read the manual". My task is simple, just to plot the following, but the plot in the middle should be a filled.contour plot: http://gallery.r-enthusiasts.com/graph/Scatterplot_with_marginal_histograms_78
Background: I prefer filled.contour rather than hist2d. Because, I could use kernel smooth, so the plot for discrete data won't be too ugly. I also tried image() and then contour(), but the number on contour is not clear and no indication about the color.
My problem: in filled.contour function, it uses layout() for filledcontour() plot and rect() plot (color bar). However, I use layout() in the outside code to organize 2 histogram and one filled.contour plot. Looks like, the layout outside is shadowed by filled.contour(). I am not sure how R deal with this problem. Should I rewrite filled.contour() somehow?
Thanks
回答1:
If you look at the help page ?filled.contour you will see that it also mentions another function called .filled.contour (extra . at the front) which does just the bare bones plotting without calling layout and causing the problems that you see. You need to do more of the checking and prelim work, but you should be able to do what you want using .filled.contour for the main plot and setting up the layout yourself.
来源：https://stackoverflow.com/questions/15302442/2d-filled-contour-plot-with-1d-histograms-by-axes-by-r