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Demo of the histogram function's different histtype settingsΒΆ

  • Histogram with step curve that has a color fill.
  • Histogram with custom and unequal bin widths.

Selecting different bin counts and sizes can significantly affect the shape of a histogram. The Astropy docs have a great section on how to select these parameters:

import numpy as np
import matplotlib.pyplot as plt


mu = 200
sigma = 25
x = np.random.normal(mu, sigma, size=100)

fig, (ax0, ax1) = plt.subplots(ncols=2, figsize=(8, 4))

ax0.hist(x, 20, density=True, histtype='stepfilled', facecolor='g', alpha=0.75)

# Create a histogram by providing the bin edges (unequally spaced).
bins = [100, 150, 180, 195, 205, 220, 250, 300]
ax1.hist(x, bins, density=True, histtype='bar', rwidth=0.8)
ax1.set_title('unequal bins')


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