Calculating a composite index in PCA using several principal components
36609
Creating a single index from several principal components or factors retained from PCA/FA
10466
Making sense of principal component analysis, eigenvectors & eigenvalues
85031
How to interpret this PCA biplot to determine which attributes to pick?
26181
Using principal component analysis (PCA) for feature selection
112134
What are principal component scores?
7632
Interpretation of biplots in principal components analysis
117085
Linear Discriminant Analysis for $p=1$
6058
Visualizing a million, PCA edition
154304
Do PCA affect different classification methods?
74683
Computationally efficient estimation of multivariate mode
151620
Multidimensional indices in databases
81645
Combining PCA, feature scaling, and cross-validation without training-test data leakage
143724
Is it possible to use kernel PCA for feature selection?
7328
The proof of shrinking coefficients using ridge regression through "spectral decomposition"
82178
Does it make sense to combine PCA and LDA?
55662
How to use principal components analysis to select variables for regression?
118997
What are the four axes on PCA biplot?