PCA using prcomp and princomp in R
50490
Why do the R functions 'princomp' and 'prcomp' give different eigenvalues?
79763
What do empty (missing) values in the output of PCA or factor analysis mean in R?
118103
Does PCA's reconstruction error get reduced with more PCs being used?
13787
Why log-transforming the data before performing principal component analysis?
156166
PCA of non-Gaussian data
7779
How does centering the data get rid of the intercept in regression and PCA?
36609
Creating a single index from several principal components or factors retained from PCA/FA
36477
Is there any required amount of variance captured by PCA in order to do later analyses?
134201
How do I select the number of components for independent components analysis?
126726
PCA, LDA, CCA, and PLS
41608
Weighted principal components analysis
118997
What are the four axes on PCA biplot?
74282
Can I use PCA (or should I use regression) for testing the effect of multiple variables on one dependent variable?
51254
How to project a new vector onto the PC space using kernel PCA?
58209
p values and significance in RLM (MASS package) R
60967
How to perform step() when n < p in R?
14465
"Normalizing" variables for SVD / PCA