From: <PHobson@Geosyntec.com>  20100430 00:27:39

> Original Message > From: melons [mailto:xichen@...] > Sent: Wednesday, April 28, 2010 5:14 AM > To: matplotlibusers@... > Subject: [Matplotlibusers] How to set constant yaxis scale value > > > Hello, > > I am quite new in matplotlib, I am now facing a quite simple problem but > have no idea to solve. I just want set the y axis scale to value 100, > which > means in the image, the y axis is always of scale 100, because the points > in > my image indicates the percentage value(for example, 20%, 87%) which will > never exceed 100. > > So, How to set the y axis scale to constant value 100 ?? It's really hard > to > find a answer from internet. Give this a shot: #  import matplotlib.pyplot as plt import numpy as np x = np.arange(20) y = np.random.randn(20) y = y/y.max() * 100 fig = plt.figure() ax = fig.add_subplot(111) ax.plot(x,y,'ko', mfc='none') # you can do this: ax.set_ylim([0,100]) # or something like this: ax.set_ylim(ymin=0, ymax=100) plt.show() 