.. _pylab_examples-color_by_yvalue: pylab_examples example code: color_by_yvalue.py =============================================== .. plot:: /home/mdboom/Work/builds/matplotlib/doc/mpl_examples/pylab_examples/color_by_yvalue.py :: # use masked arrays to plot a line with different colors by y-value from numpy import logical_or, arange, sin, pi from numpy import ma from matplotlib.pyplot import plot, show t = arange(0.0, 2.0, 0.01) s = sin(2*pi*t) upper = 0.77 lower = -0.77 supper = ma.masked_where(s < upper, s) slower = ma.masked_where(s > lower, s) smiddle = ma.masked_where(logical_or(supper), s) plot(t, slower, 'r', t, smiddle, 'b', t, supper, 'g') show() Keywords: python, matplotlib, pylab, example, codex (see :ref:`how-to-search-examples`)