You are reading an old version of the documentation (v1.5.0). For the latest version see

We're updating the default styles for Matplotlib 2.0

Learn what to expect in the new updates


Previous topic

pylab_examples example code:

Next topic

pylab_examples example code:

This Page

pylab_examples example code: major_minor_demo2.pyΒΆ

(Source code, png, hires.png, pdf)

#!/usr/bin/env python
Automatic tick selection for major and minor ticks.

Use interactive pan and zoom to see how the tick intervals
change. There will be either 4 or 5 minor tick intervals
per major interval, depending on the major interval.

import numpy as np
import matplotlib.pyplot as plt
from matplotlib.ticker import AutoMinorLocator

# One can supply an argument to AutoMinorLocator to
# specify a fixed number of minor intervals per major interval, e.g.:
# minorLocator = AutoMinorLocator(2)
# would lead to a single minor tick between major ticks.

minorLocator = AutoMinorLocator()

t = np.arange(0.0, 100.0, 0.01)
s = np.sin(2*np.pi*t)*np.exp(-t*0.01)

fig, ax = plt.subplots()
plt.plot(t, s)


plt.tick_params(which='both', width=2)
plt.tick_params(which='major', length=7)
plt.tick_params(which='minor', length=4, color='r')

Keywords: python, matplotlib, pylab, example, codex (see Search examples)