Hello, I want to place two plots on top of each other. However, the problem is that I can't figure out a simple way to align them correctly. Is there a way to specify this? Since the data is bunch of coordinates and the second layer is an outline of a map (a .ps file I import using the grImport package), I suppose one option would be to specify a set of "artificial" coordinates that make up the very corners of that plot, and then have the second layer will this same space. Any ideas how to do this?
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