Plotting of 1-dimensional Gaussian distribution function

pythonnewbie picture pythonnewbie · Feb 14, 2013 · Viewed 124k times · Source

How do I make plots of a 1-dimensional Gaussian distribution function using the mean and standard deviation parameter values (μ, σ) = (−1, 1), (0, 2), and (2, 3)?

I'm new to programming, using Python.

Thank you in advance!

Answer

danodonovan picture danodonovan · Feb 14, 2013

With the excellent matplotlib and numpy packages

from matplotlib import pyplot as mp
import numpy as np

def gaussian(x, mu, sig):
    return np.exp(-np.power(x - mu, 2.) / (2 * np.power(sig, 2.)))

x_values = np.linspace(-3, 3, 120)
for mu, sig in [(-1, 1), (0, 2), (2, 3)]:
    mp.plot(x_values, gaussian(x_values, mu, sig))

mp.show()

will produce something like plot showing one-dimensional gaussians produced by matplotlib