Bar Chart with Vertical Labels in Python Matplotlib

First, we can create bars using plt.bar and using xticks. Then, we can align the labels by setting the “vertical” or “horizontal” attributes in the “rotation” key.

Steps

• Make lists, bars_heights, and bars_label, with numbers.

• Make a bar plot using bar() method, with bars_heights and length of bars_label.

• Get or set the current tick locations and labels of the X-axis, using xticks() with rotation='vertical' and bars_label.

• To show the plot, use plt.show() method.

Example

from matplotlib import pyplot as plt

bars_heights = [14, 8, 10]
bars_label = ["A label", "B label", "C label"]

plt.bar(range(len(bars_label)), bars_heights)
plt.xticks(range(len(bars_label)), bars_label, rotation='vertical')
plt.show()

Output