Why are the directions of eigenvectors in SVD and Eigen-Decomposition for PCA opposite?
14381
I'm getting "jumpy" loadings in rollapply PCA in R. Can I fix it?
143908
What are "rotated" and "unrotated" principal components, given that PCA always rotates the coordinates axes?
84446
How to project a new vector onto PCA space?
158716
Cholesky versus eigendecomposition for drawing samples from a multivariate normal distribution
125802
Why is EigenValues returning Root expressions?
64156
Why an eigenspace is a linear subspace, if the zero vector is not an eigenvector?
29408
Get Eigensystem to return orthogonal eigenvectors for Hermitian matrix
10466
Making sense of principal component analysis, eigenvectors & eigenvalues
55847
PCA demeaning the data
69547
Find the eigenvector associated with the smallest eigenvalue, not smallest in magnitude
602
How get eigenvectors without phase jump?
93325
Difference In Eigenvectors
14320
How to prove that eigenvectors from different eigenvalues are linearly independent
156868
Why is finding $M$ eigenvectors on smaller matrix valid?
25410
What is an intuitive explanation for how PCA turns from a geometric problem (with distances) to a linear algebra problem (with eigenvectors)?
109471
The eigenvectors of the transpose operator
77307
Why does inversion of a covariance matrix yield partial correlations between random variables?