Training a model with PCA
Now that you have run PCA on the wine
dataset, you'll finally train a KNN model using the transformed data.
Cet exercice fait partie du cours
Preprocessing for Machine Learning in Python
Instructions
- Fit the
knn
model to the PCA-transformed features,pca_X_train
, and training labels,y_train
. - Print the test set accuracy of the
knn
model usingpca_X_test
andy_test
.
Exercice interactif pratique
Essayez cet exercice en complétant cet exemple de code.
# Fit knn to the training data
____
# Score knn on the test data and print it out
____