Is there a simple way to implement a two-axis plot in Mathematica? On Quora.com there is a suggestion to use Show to combine two different plots with the same x-axis domain and with y-axes on opposite ends of the plots. I can't seem to get this to work though (I get only one plot shown or the other, but not both).
From Quora.com:
https://www.quora.com/Mathematica/Is-there-a-simple-way-to-make-a-secondary-y-axis-on-a-plot
"...you can also do each plot separately, frame them instead of having axes, make sure they have the same horizontal axes, plot 1 has a left handed vertical label, plot 2 has a right-handed vertical label, and then Show[{Plot1,Plot2}]."
Show[]. – J. M.'s missing motivation Oct 09 '15 at 15:16