3.2.5. Scatter plots

Scatter plots display unconnected data points.

Python source code: plot_scatter.py

import matplotlib.pyplot as plt
import numpy as np

n = 1024
X = np.random.normal(0, 1, n)
Y = np.random.normal(0, 1, n)

T = np.arctan2(Y, X)

plt.scatter(X, Y, s=75, c=T, alpha=.5)
plt.xlim(-1.5, 1.5)
plt.xticks(())
plt.ylim(-1.5, 1.5)
plt.yticks(())

plt.text(-0.05, 1.02, "Scatter Plot:  plt.scatter(...)\n",
      horizontalalignment='left',
      verticalalignment='top',
      size='xx-large',
      bbox=dict(facecolor='white', alpha=1.0, width=400, height=65),
      transform=plt.gca().transAxes)

plt.text(-0.05, 1.01, "\n\n   Make a scatter plot of x versus y ",
      horizontalalignment='left',
      verticalalignment='top',
      size='large',
      transform=plt.gca().transAxes)

plt.show()

Total running time of the example: 0.08 seconds ( 0 minutes 0.08 seconds)