.. _pylab_examples-histogram_percent_demo: pylab_examples example code: histogram_percent_demo.py ====================================================== .. plot:: /home/mdboom/Work/builds/matplotlib/doc/mpl_examples/pylab_examples/histogram_percent_demo.py :: import matplotlib from numpy.random import randn import matplotlib.pyplot as plt from matplotlib.ticker import FuncFormatter def to_percent(y, position): # Ignore the passed in position. This has the effect of scaling the default # tick locations. s = str(100 * y) # The percent symbol needs escaping in latex if matplotlib.rcParams['text.usetex'] == True: return s + r'$\%$' else: return s + '%' x = randn(5000) # Make a normed histogram. It'll be multiplied by 100 later. plt.hist(x, bins=50, normed=True) # Create the formatter using the function to_percent. This multiplies all the # default labels by 100, making them all percentages formatter = FuncFormatter(to_percent) # Set the formatter plt.gca().yaxis.set_major_formatter(formatter) plt.show() Keywords: python, matplotlib, pylab, example, codex (see :ref:`how-to-search-examples`)