.. _pylab_examples-nan_test: pylab_examples example code: nan_test.py ======================================== .. plot:: /home/tcaswell/source/my_source/matplotlib/doc/mpl_examples/pylab_examples/nan_test.py :: """ Example: simple line plots with NaNs inserted. """ import numpy as np import matplotlib.pyplot as plt t = np.arange(0.0, 1.0 + 0.01, 0.01) s = np.cos(2 * 2 * np.pi * t) t[41:60] = np.nan plt.subplot(2, 1, 1) plt.plot(t, s, '-', lw=2) plt.xlabel('time (s)') plt.ylabel('voltage (mV)') plt.title('A sine wave with a gap of NaNs between 0.4 and 0.6') plt.grid(True) plt.subplot(2, 1, 2) t[0] = np.nan t[-1] = np.nan plt.plot(t, s, '-', lw=2) plt.title('Also with NaN in first and last point') plt.xlabel('time (s)') plt.ylabel('more nans') plt.grid(True) plt.show() Keywords: python, matplotlib, pylab, example, codex (see :ref:`how-to-search-examples`)