### Navigation

- index
- modules |
- home|
- examples|
- tutorials|
- pyplot|
- docs »

# Stacked Bar Graph

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.

    import numpy as np
    import matplotlib.pyplot as plt

    N = 5
    menMeans = (20, 35, 30, 35, 27)
    womenMeans = (25, 32, 34, 20, 25)
    menStd = (2, 3, 4, 1, 2)
    womenStd = (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

    p1 = plt.bar(ind, menMeans, width, color='#d62728', yerr=menStd)
    p2 = plt.bar(ind, womenMeans, width,
                 bottom=menMeans, yerr=womenStd)

    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((p1[0], p2[0]), ('Men', 'Women'))

    plt.show()

Total running time of the script: ( 0 minutes 0.038 seconds)

Generated by Sphinx-Gallery