Pipelining: chaining a PCA and a logistic regression — scikit-learn 0.19.2 documentation

Pipelining: chaining a PCA and a logistic regression¶ The PCA does an unsupervised dimensionality reduction, while the logistic regression does the prediction. We use a GridSearchCV to set the dimensionality of the PCA print(__doc__) # Code source: Gaël Varoquaux # Modified for documentation by Jaques Grobler # License: BSD 3 clause import numpy as np import matplotlib.pyplot as plt from sklearn i