Question

In matplotlib, sometime the major-ticks are too close to each other in a loglog plot. Instead of setting them manually, can one use something similar to MaxNLocator to put ticks at n-locations in a log scale?

import numpy as np
import pylab as p

x=np.logspace(1,20,10)

fig=p.figure()
ax1=fig.add_subplot(121)
ax1.loglog(x,x,'o')
ax2=fig.add_subplot(122)
ax2.loglog(x,x,'o')
fig.show()

Answer 1

For each axis you could set a LogLocator:

from matplotlib import ticker
ax.xaxis.set_major_locator(ticker.LogLocator(base = 1000.0))