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Machine Learning avec Scikit-Learn
book

Machine Learning avec Scikit-Learn

by Aurélien Géron
November 2019
Intermediate to advanced
320 pages
13h 35m
French
Dunod
Content preview from Machine Learning avec Scikit-Learn
6.8 Régression
175
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6.8 RÉGRESSION
Les arbres de décision sont aussi capables d’effectuer des tâches de régres-
sion. Construisons donc un arbre de régression en utilisant la classe
DecisionTreeRegressor de Scikit-Learn, en l’entraînant sur un jeu de don-
nées quadratique comportant des aléas (ou bruit) en utilisant max_depth=2 :
from sklearn.tree import DecisionTreeRegressor
tree_reg = DecisionTreeRegressor(max_depth=2)
tree_reg.fit(X, y)
La gure 6.4 présente l’arbre qui en résulte.
Figure 6.4 – Arbre de décision pour une régression
Cet arbre ressemble beaucoup à l’arbre de classication construit ...
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Publisher Resources

ISBN: 9782100797820