http://nbviewer.ipython.org/github/jdowns/2013_fall_ASTR599/blob/master/notebooks/06_Denoise_Solution.ipynb

%pylab inline import sys import numpy as np from matplotlib import pyplot as plt def plot_spectrum(F, amplify=1000, ax=None): """Normalise, amplify and plot an amplitude spectrum.""" # Note: the problem here is that we have a spectrum whose histogram is # *very* sharply peaked at small values. To get a meaningful display, a # simple strategy to improve the display quality consists of simply # ampl