PCA vs. Factor Analysis
63042
What are the differences between Factor Analysis and Principal Component Analysis?
29381
How to perform dimensionality reduction with PCA in R
154304
Do PCA affect different classification methods?
48567
Skewed variables in PCA or factor analysis
18487
Why are there only $n-1$ principal components for $n$ data if the number of dimensions is $\ge n$?
55662
How to use principal components analysis to select variables for regression?
3089
Why PCA of data by means of SVD of the data?
69386
What's the relationship between initial eigenvalues and sums of squared loadings in factor analysis?
117085
Linear Discriminant Analysis for $p=1$
112934
Is PCA followed by a rotation (such as varimax) still PCA?
143908
What are "rotated" and "unrotated" principal components, given that PCA always rotates the coordinates axes?
13787
Why log-transforming the data before performing principal component analysis?
157062
Dimensionality reduction (SVD or PCA) on a large, sparse matrix
82178
Does it make sense to combine PCA and LDA?
3589
How to reverse PCA and reconstruct original variables from several principal components?
105175
Variable ordering using PCA
139690
Which variables should I transform, center, and/or standardize in my data for Principal Component Analysis?