scipy/scipy — pull request #224 by bjornfor (2012-05-20 19:26:20+00:00)
Title: ENH: ltisys: new bode() function

bode() calculates magnitude and phase data of a continuous-time system.

Example:
$ ipython --pylab
>>> from scipy.signal import *
>>> s1 = lti([1], [1, 1])
>>> w, mag, phase = s1.bode()
>>> semilogx(w, mag) # bode magnitude plot
>>> figure()
>>> semilogx(w, phase) # bode phase plot