plot_fig histc range may fall in roughly between -3.0<x<1.0 #6
Description
Inside plot_fig function,
the x-range of histc may fall roughly between -3.0<x<1.0,
because np.histogram range is gs.min() < x < gs.max(), if no range is specified
This may result in a horizontal shift of the following ax.plot which specified -5<x<5