Is standardization required by PCA?
6316
PCA on correlation or covariance?
76740
Error parsing PCC subspaces from PCCT: ACPI PCC probe failed
17025
What exactly is called "principal component" in PCA?
154304
Do PCA affect different classification methods?
710
Importance of predictors in multiple regression: Partial $R^2$ vs. standardized coefficients
89237
PCA: Eigenvectors of opposite sign and not being able to compute eigenvectors with `solve` in R
134031
Is the covariance of standardized variables the correlation?
116362
Is PCA unstable under multicollinearity?
108556
Standardization vs. Normalization for Lasso/Ridge Regression
81645
Combining PCA, feature scaling, and cross-validation without training-test data leakage
22551
What can cause PCA to worsen results of a classifier?
70917
What's the difference between principal component analysis and multidimensional scaling?
74282
Can I use PCA (or should I use regression) for testing the effect of multiple variables on one dependent variable?
101622
Choosing number of principal components to retain
36609
Creating a single index from several principal components or factors retained from PCA/FA
24814
Is PCA still done via the eigendecomposition of the covariance matrix when dimensionality is larger than the number of observations?
86082
Interpreting PCA scores