.. _pylab_examples-spectrum_demo: pylab_examples example code: spectrum_demo.py ============================================= .. plot:: /home/tcaswell/other_source/matplotlib/doc/mpl_examples/pylab_examples/spectrum_demo.py :: #!/usr/bin/env python # python from pylab import * dt = 0.01 Fs = 1/dt t = arange(0, 10, dt) nse = randn(len(t)) r = exp(-t/0.05) cnse = convolve(nse, r)*dt cnse = cnse[:len(t)] s = 0.1*sin(2*pi*t) + cnse subplot(3, 2, 1) plot(t, s) subplot(3, 2, 3) magnitude_spectrum(s, Fs=Fs) subplot(3, 2, 4) magnitude_spectrum(s, Fs=Fs, scale='dB') subplot(3, 2, 5) angle_spectrum(s, Fs=Fs) subplot(3, 2, 6) phase_spectrum(s, Fs=Fs) show() Keywords: python, matplotlib, pylab, example, codex (see :ref:`how-to-search-examples`)