Python, R Programming, R, Linear Algebra, Calculus.
3], [4, 5, 6], [7, 8, 9]]) pca = PCA(n_components=2) X_pca = pca.fit_transform(X) print("Original matrix:") print(X) print("PCA matrix:") print(X_pca) In this example, we’re using the PCA class from scikit-learn to perform PCA on the matrix X. We're reducing the number of features from 3 to 2.