hbar with error mark.py

import numpy as np
import matplotlib.pyplot as plt

fig, ax = plt.subplots()
ax.set_title('Horizontal Bar graph with error mark demo')
ax.set_xlabel('x label title')
ax.set_ylabel('y label title')

y_vals = [10, 14, 12, 11, 13]
y_labels = ['y' + str(i) for i in range(5)]
y_position = [0, 1, 2, 3, 4]

x_vals = 10 * np.random.rand(len(y_vals)) + 3
error_mark = np.random.rand(len(y_vals))

ax.barh(y_position, y_vals, xerr=error_mark, capsize=5, align='center', color='blue', alpha=0.6, ecolor='red')
ax.set_yticks(y_position)
ax.set_yticklabels(y_labels)

ax.invert_yaxis()
plt.tight_layout()
plt.show()