Varying lengths of eigenvectors on a PCA biplot
113346
What is the proper association measure of a variable with a PCA component (on a biplot / loading plot)?
38169
Bounds on off-diagonal entries of a correlation matrix
29381
How to perform dimensionality reduction with PCA in R
48567
Skewed variables in PCA or factor analysis
36609
Creating a single index from several principal components or factors retained from PCA/FA
81049
What norm of the reconstruction error is minimized by the low-rank approximation matrix obtained with PCA?
154261
PCA when the dimensionality is greater than the number of samples
92455
Orthonormalization of non-hermitian matrix eigenvectors
3544
Eigenvectors of a circulant matrix
24814
Is PCA still done via the eigendecomposition of the covariance matrix when dimensionality is larger than the number of observations?
42297
Minimum sample size for PCA or FA when the main goal is to estimate only few components?
108567
Nielsen & Chuang Exercise 2.2 - “Matrix representations: example”
6316
PCA on correlation or covariance?
132913
Sum of two eigenvectors for different eigenvalues
56670
The intuition behind generalized eigenvectors
118103
Does PCA's reconstruction error get reduced with more PCs being used?
103877
The advantages and disadvantages of using Kaiser Rule to select the number of principal components