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Version 3.1.0.post900+g4a0d9c51a
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Stacked Bar GraphΒΆ

This is an example of creating a stacked bar plot with error bars using bar. Note the parameters yerr used for error bars, and bottom to stack the women's bars on top of the men's bars.

../../_images/sphx_glr_bar_stacked_001.png
import numpy as np
import matplotlib.pyplot as plt


N = 5
men_means = [20, 35, 30, 35, 27]
women_means = [25, 32, 34, 20, 25]
men_std = [2, 3, 4, 1, 2]
women_std = [3, 5, 2, 3, 3]
ind = np.arange(N)    # the x locations for the groups
width = 0.35       # the width of the bars: can also be len(x) sequence

plt.bar(ind, men_means, width, yerr=men_std, label='Men')
plt.bar(ind, women_means, width, yerr=women_std, bottom=men_means,
        label='Women')

plt.ylabel('Scores')
plt.title('Scores by group and gender')
plt.xticks(ind, ('G1', 'G2', 'G3', 'G4', 'G5'))
plt.yticks(np.arange(0, 81, 10))
plt.legend()

plt.show()

Keywords: matplotlib code example, codex, python plot, pyplot Gallery generated by Sphinx-Gallery