Selecting the proportion of variance to keep
You'll let PCA determine the number of components to calculate based on an explained variance threshold that you decide.
You'll work on the numeric ANSUR female dataset pre-loaded as ansur_df.
All relevant packages and classes have been pre-loaded too (Pipeline(), StandardScaler(), PCA()).
Questo esercizio fa parte del corso
Dimensionality Reduction in Python
Esercizio pratico interattivo
Prova a risolvere questo esercizio completando il codice di esempio.
# Pipe a scaler to PCA selecting 80% of the variance
pipe = ____([('scaler', ____),
('reducer', ____)])