I've been trying to use the spy library to magnify a part of my plot, but I don't really understand how it works, and I can't find a manual/tutorial anywhere.
Right now I am doing something based on this for the magnification part, although not exactly what I was looking for, might do the trick.

However, my question is how exactly do I get the "x 2000" line, along with the second plot?
spylibrary, because that's what it does. I think your best bet is to just use a secondaxisenvironment. – Jake Jul 16 '13 at 20:02