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pythonmatplotliberrorbar

matplotlib bar method not returning error bars

According to matplotlib documentation, the method matplotlib.pyplot.bar() returns a

"container with all the bars and optionally errorbars"

(https://matplotlib.org/stable/api/_as_gen/matplotlib.pyplot.bar.html)

I have created a bar plot with the following code:

x = plt.bar(spacing, medians, yerr=yerr, capsize=20, width=0.5, tick_label = x_labels, edgecolor= "black")

which creates the following bar chart:

enter image description here

However, the variable x only contains the bars, not the errorbars as the documentation says it should.

Any ideas how I can get at the error bars?

Solution

  • You should be able to access them using:

    x.errorbar.get_children()

    To get the line segments, you can use get_segments() on the LineCollection:

    x.errorbar.get_children()[0].get_segments()