Python: Graph with Segmented Colors and Horizontal Multiple Graphs

This post shows how to plot a graph with segmented colors and then uses this to draw horizontal multiple graphs.

The following Python code in the Jupyter notebook plots a graph with segmented colors. It is done by splitting x and y respectively.

import numpy as np
import matplotlib.pyplot as plt
# sample data
x = np.arange(0.0, 2.0, 0.01)
y_fit  = np.sin(2*np.pi*x)
y_real = y_fit + (np.random.random(x.size)-0.5)*0.5
# graph with segmented colors 
fig, ax = plt.subplots()
ax.plot(   x[0:50], y_fit [0:50], color = 'blue')
ax.scatter(x[0:50], y_real[0:50], color = 'blue')
ax.plot(   x[50:100], y_fit [50:100], color = 'red')
ax.scatter(x[50:100], y_real[50:100], color = 'red')
ax.plot(   x[100:], y_fit [100:], color = 'black')
ax.scatter(x[100:], y_real[100:], color = 'black')

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