Multiple grids on matplotlib

Question

I\'m making plots in Python and matplotlib, which I found huge and flexible, till now.

The only thing I couldn\'t find how to do, is to make my plot have multiple grids.

Answer 1

How about something like this (adapted from here):

from pylab import *
from matplotlib.ticker import MultipleLocator, FormatStrFormatter

t = arange(0.0, 100.0, 0.1)
s = sin(0.1*pi*t)*exp(-t*0.01)

ax = subplot(111)
plot(t,s)

ax.xaxis.set_major_locator(MultipleLocator(20))
ax.xaxis.set_major_formatter(FormatStrFormatter('%d'))
ax.xaxis.set_minor_locator(MultipleLocator(5))

ax.yaxis.set_major_locator(MultipleLocator(0.5))
ax.yaxis.set_minor_locator(MultipleLocator(0.1))

ax.xaxis.grid(True,'minor')
ax.yaxis.grid(True,'minor')
ax.xaxis.grid(True,'major',linewidth=2)
ax.yaxis.grid(True,'major',linewidth=2)

show()