[Python] Matplotlib fill between

I want to use fill between or whatever necesary to colour instead of plotting points in this figure. Basically substitute the dots by a continuos band of colour. How may I achieve this?



The relevant code is the following (the points can be thought as three sets of experimental data, which more or less they are)

import matplotlib.pyplot as plt
from matplotlib.ticker import MaxNLocator
from pylab import figure, show

plt.rc('text', usetex=True)
plt.rc('font', family='serif')

fig = figure()
ax = fig.add_subplot(111)

p1, = ax.plot(x_124,y_124,'o')
p2, = ax.plot(x_125,y_125,'o')
p3, = ax.plot(x_126,y_126,'o')

xmax=max(x_124+x_125+x_126)
xmin=min(x_124+x_125+x_126)
ymax=max(y_124+y_125+y_126)
ymin=min(y_124+y_125+y_126)

plt.title('Escenario $m_{h}^{\mathrm{max}}$')

plt.ticklabel_format(style='sci',scilimits=(0,0),axis='both')

ax.xaxis.set_major_locator(MaxNLocator(12))
ax.yaxis.set_major_locator(MaxNLocator(12))
plt.xlim(0.96*xmin,1.04*xmax)
plt.ylim(0.96*ymin,1.04*ymax)

plt.legend(['$m_h$ = 124 GeV','$m_h$ = 125 GeV','$m_h$ = 126 GeV'],numpoints=1,loc=0)

plt.xlabel('M3SQ / GeV')
plt.ylabel('M3SU / GeV')

ax.grid()
show()

Continue reading...