There are two main ways of creating a plot in matplotlib: the pyplot MATLAB-style system and an object-oriented system. Although many tutorials online use the MATLAB interface, it is usually a good idea to use the object-oriented system.
I mention this here because after one calls `plt.plot(<stuff>)`, it can be a bit nonintuitive how to alter the plot through the MATLAB-style interface. I think this might be happening here. If you provide a complete minimally-running-code sample, I'd be happy to go through it in a bit more detail. - David Lowry-Duda -- https://mail.python.org/mailman/listinfo/python-list
