Python Machine Learning Cookbook - Second Edition

How to do it...

Let's look at how to plot three-dimensional scatter plots:

1. Create a new Python file and import the following packages (the full code is in the scatter_3d.py file that's already provided to you):

import numpy as np 
import matplotlib.pyplot as plt  

2. Create the empty figure, as follows:

# Create the figure 
fig = plt.figure() 
ax = fig.add_subplot(111, projection='3d') 

3. Define the number of values that we should generate:

# Define the number of values 
n = 250 

4. Create a lambda function to generate the values in a given range:

# Create a lambda function to generate the random values in the given range 
f = lambda minval, maxval, n: minval + (maxval - minval) * np.random.rand(n) 

5. Generate the x, y, and z values using the