PCA on categorical variables
39839
Doing principal component analysis or factor analysis on binary data
14465
"Normalizing" variables for SVD / PCA
24814
Is PCA still done via the eigendecomposition of the covariance matrix when dimensionality is larger than the number of observations?
85031
How to interpret this PCA biplot to determine which attributes to pick?
10256
Principled way of collapsing categorical variables with many levels?
93145
Can I add several additional variables to my principal component regression?
6058
Visualizing a million, PCA edition
31175
Interpretation of betas when there are multiple categorical variables
82178
Does it make sense to combine PCA and LDA?
55662
How to use principal components analysis to select variables for regression?
29381
How to perform dimensionality reduction with PCA in R
113346
What is the proper association measure of a variable with a PCA component (on a biplot / loading plot)?
155433
Examples of PCA where PCs with low variance are "useful"
155987
Canonical Correlation analysis without raw data (algebra of CCA)
16523
How to compute classification accuracy of PCA?
6590
PCA and proportion of variance explained
127865
Regression with only categorical variables