I am trying to plot the following !
from numpy import * from pylab import * import random for x in range(1,500): y = random.randint(1,25000) print(x,y) plot(x,y) show()
However, I keep getting a blank graph (?). Just to make sure that the program logic is correct I added the code
print(x,y), just the confirm that (x,y) pairs are being generated.
(x,y) pairs are being generated, but there is no plot, I keep getting a blank graph.
Any help ?
First of all, I have sometimes had better success by doing
from matplotlib import pyplot
instead of using pylab, although this shouldn't make a difference in this case.
I think your actual issue might be that points are being plotted but aren't visible. It may work better to plot all points at once by using a list:
xPoints =  yPoints =  for x in range(1,500): y = random.randint(1,25000) xPoints.append(x) yPoints.append(y) pyplot.plot(xPoints, yPoints) pyplot.show()
To make this even neater, you can use generator expressions:
xPoints = range(1,500) yPoints = [random.randint(1,25000) for _ in range(1,500)] pyplot.plot(xPoints, yPoints) pyplot.show()