.. _pylab_examples-legend_demo2:

pylab_examples example code: legend_demo2.py
============================================



.. plot:: /home/mdboom/Work/builds/matplotlib/doc/mpl_examples/pylab_examples/legend_demo2.py

::

    #!/usr/bin/env python
    #
    # Make a legend for specific lines.
    from pylab import *
    
    t1 = arange(0.0, 2.0, 0.1)
    t2 = arange(0.0, 2.0, 0.01)
    
    # note that plot returns a list of lines.  The "l1, = plot" usage
    # extracts the first element of the list inot l1 using tuple
    # unpacking.  So l1 is a Line2D instance, not a sequence of lines
    l1,    = plot(t2, exp(-t2))
    l2, l3 = plot(t2, sin(2*pi*t2), '--go', t1, log(1+t1), '.')
    l4,    = plot(t2, exp(-t2)*sin(2*pi*t2), 'rs-.')
    
    legend( (l2, l4), ('oscillatory', 'damped'), 'upper right', shadow=True)
    xlabel('time')
    ylabel('volts')
    title('Damped oscillation')
    #axis([0,2,-1,1])
    show()
    
    
    
    

Keywords: python, matplotlib, pylab, example, codex (see :ref:`how-to-search-examples`)