This should be quite easy, but I don't even know the right name of what I want.
I want to plot frame lines in my matplotlib graphs, basically, transform the left graph in the right graph in the picture below:
My code is basically:
fig,ax = plt.subplots(1,1,squeeze=True,figsize=(16,14))
ax.plot(data1,negativeX,'g',linewidth=7)
ax.plot(data2,positiveX,'k')
for ax in fig.axes:
ax.set_title(header)
plt.show()
