digits3d.py

# code for visualizing the Digits dataset in 3D
from sklearn.datasets import load_digits

digits = load_digits()

from sklearn.manifold import TSNE

tsne3 = TSNE(n_components=3, random_state=11)

reduced_data3 = tsne3.fit_transform(digits.data) 

import matplotlib.pyplot as plt

figure = plt.figure(figsize=(7, 5))

import mpl_toolkits.mplot3d.axes3d as axes3d

axes = figure.add_subplot(projection='3d')

dots = axes.scatter(reduced_data3[:, 0], reduced_data3[:, 1], reduced_data3[:, 2], 
    c=digits.target, cmap=plt.cm.get_cmap('nipy_spectral_r', 10))
    
colorbar = plt.colorbar(dots)

plt.show()
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