Note
Click here to download the full example code
Demo of the histogram function's different histtype
settings¶
- Histogram with step curve that has a color fill.
- Histogram with step curve with no fill.
- Histogram with custom and unequal bin widths.
- Two histograms with stacked bars.
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: http://docs.astropy.org/en/stable/visualization/histogram.html
import numpy as np
import matplotlib.pyplot as plt
np.random.seed(19680801)
mu_x = 200
sigma_x = 25
x = np.random.normal(mu_x, sigma_x, size=100)
mu_w = 200
sigma_w = 10
w = np.random.normal(mu_w, sigma_w, size=100)
fig, axs = plt.subplots(nrows=2, ncols=2)
axs[0, 0].hist(x, 20, density=True, histtype='stepfilled', facecolor='g',
alpha=0.75)
axs[0, 0].set_title('stepfilled')
axs[0, 1].hist(x, 20, density=True, histtype='step', facecolor='g',
alpha=0.75)
axs[0, 1].set_title('step')
axs[1, 0].hist(x, density=True, histtype='barstacked', rwidth=0.8)
axs[1, 0].hist(w, density=True, histtype='barstacked', rwidth=0.8)
axs[1, 0].set_title('barstacked')
# Create a histogram by providing the bin edges (unequally spaced).
bins = [100, 150, 180, 195, 205, 220, 250, 300]
axs[1, 1].hist(x, bins, density=True, histtype='bar', rwidth=0.8)
axs[1, 1].set_title('bar, unequal bins')
fig.tight_layout()
plt.show()
![stepfilled, step, barstacked, bar, unequal bins](../../_images/sphx_glr_histogram_histtypes_001.png)
References¶
The use of the following functions and methods is shown in this example:
import matplotlib
matplotlib.axes.Axes.hist
matplotlib.pyplot.hist
Out:
<function hist at 0x7f5f32b7c700>
Keywords: matplotlib code example, codex, python plot, pyplot Gallery generated by Sphinx-Gallery