changing-the-plotting-style.py

"""
This module illustrates how to change the plotting style to prevent
Matplotlib from drawing lines between each data point.
"""
import numpy as np
import matplotlib.pyplot as plt

y1 = np.array([1.0, 2.0, 3.0, 4.0, 5.0])
y2 = np.array([1.2, 1.6, 3.1, 4.2, 4.8])
y3 = np.array([3.2, 1.1, 2.0, 3.9, 2.5])

fig, ax = plt.subplots()

lines = ax.plot(y1, 'o', y2, 'x', y3, '*')

ax.set_title("Plot of the data y1, y2, and y3")
ax.set_ylabel("y axis label")
ax.set_xlabel("x axis label")
ax.legend(("data y1", "data y2", "data y3"))

plt.show()