Confidence Interval

Hi,

is there a way to display confidence intervals other than using Polygon like, e.g.

ax = subplot(111)
# make the shaded region
upperPoints = zip(runs, upperConf)
upperPoints.reverse()
verts = [(runs[0], upperConf[0])] + zip(runs, lowerConf) + upperPoints
poly = Polygon(verts, facecolor=0.6, edgecolor=0.6)
ax.add_patch(poly)

Best regards,
wr