How to make the shading reach the edges of the graph?

Question

I'm new to matplotlib and I'm trying to learn how to shade the area between two horizontal lines in a bar chart, and I wanna know how I can make it reach the edges. Here is an example:

import numpy as np
import matplotlib.pyplot as plt

N = 8
A = np.random.random(N)
B = np.random.random(N)
X = np.arange(N)

plt.bar(X, A, color = 'b')
plt.fill_between(X,0.4,0.6, facecolor = 'thistle', zorder = 2, alpha = 0.5)
plt.show()

This shows this: image

score 0 · Accepted Answer · answered Nov 16 '20 at 21:29

Not sure if this is the "correct" way to do this, but one option:

width=0.8
plt.bar(X, A, color = 'b', width=width)

X = X.astype(float)
X[0] -= width/2
X[-1] += width/2

plt.fill_between(X,0.4,0.6, facecolor = 'thistle', zorder = 2, alpha = 0.5)

Output:

How to make the shading reach the edges of the graph?

1 Answers1