Plotting Histogram In Python

python-histogram.md

Plotting Histograms in Python

Using MatPlotLib API

Example 1:

s = np.random.uniform(-1,0,1000)
import matplotlib.pyplot as plt
count, bins, ignored = plt.hist(s, 15, normed=True)
plt.plot(bins, np.ones_like(bins), linewidth=2, color='r')
plt.show()

Reference: https://docs.scipy.org/doc/numpy/reference/generated/numpy.random.uniform.html

Example 2:

import numpy as np
mu, sigma = 100, 15
x = mu + sigma * np.random.randn(10000)

import matplotlib.pyplot as plt
plt.hist(x, bins=50)
plt.savefig('hist.png')

Reference: https://stackoverflow.com/a/43822468

Using NumPy API

import matplotlib.pyplot as plt
import numpy as np

mu, sigma = 100, 15
x = mu + sigma * np.random.randn(10000)
hist, bins = np.histogram(x, bins=50)
width = 0.7 * (bins[1] - bins[0])
center = (bins[:-1] + bins[1:]) / 2
plt.bar(center, hist, align='center', width=width)
plt.show()

Using Object-oriented

fig, ax = plt.subplots()
ax.bar(center, hist, align='center', width=width)
fig.savefig("1.png")

Reference: https://stackoverflow.com/a/5328669

I found the very best article to create a histogram with python. Download code with explanation

Thank you for sharing that link, but the intended use for this gist (generating histogram for an array of numbers) is completely different from the link you shared (which generates a histogram for an image).