Getting PCA eigenvectors with the values of opposite sign
8333
Does the sign of scores or of loadings in PCA or FA have a meaning? May I reverse the sign?
17025
What exactly is called "principal component" in PCA?
69547
Find the eigenvector associated with the smallest eigenvalue, not smallest in magnitude
29381
How to perform dimensionality reduction with PCA in R
151088
Finding Matrix A from Eigenvalues and Eigenvectors (Diagonalization)
602
How get eigenvectors without phase jump?
21224
Applying PCA to data that fail a normality test
37836
Generalized eigenvectors in MATLAB?
55847
PCA demeaning the data
14465
"Normalizing" variables for SVD / PCA
149629
The Eigenvalues of a block matrix
24814
Is PCA still done via the eigendecomposition of the covariance matrix when dimensionality is larger than the number of observations?
115467
Eigenvalues of Householder matrix
156868
Why is finding $M$ eigenvectors on smaller matrix valid?
92455
Orthonormalization of non-hermitian matrix eigenvectors
123679
General Information about Eigenvalues for an 3x3 symmetric matrix
48567
Skewed variables in PCA or factor analysis