Applied Math

mean_center(A)	Mean center the matrix A by subtracting its mean.
get_rotation_matrix(A, B)	Returns optimal rotation matrix to align 2D coordinates A to B.
pca(A[, method])	Principal component analysis of matrix A.

Implementation Details

_pca_eig(A)	Principal component analysis of matrix A by eigen decomposition.
_pca_svd(A)	Principal component analysis of matrix A by singular value decomposition.