.. _statistics-errorbar_demo: statistics example code: errorbar_demo.py ========================================= .. plot:: /home/tcaswell/src/p/matplotlib/doc/mpl_examples/statistics/errorbar_demo.py :: """ ============================= Demo of the errorbar function ============================= This exhibits the most basic use of the error bar method. In this case, constant values are provided for the error in both the x- and y-directions. """ import numpy as np import matplotlib.pyplot as plt # example data x = np.arange(0.1, 4, 0.5) y = np.exp(-x) fig, ax = plt.subplots() ax.errorbar(x, y, xerr=0.2, yerr=0.4) plt.show() Keywords: python, matplotlib, pylab, example, codex (see :ref:`how-to-search-examples`)