PCA, correlation of the features of projected data
90089
Why are PCA eigenvectors orthogonal and what is the relation to the PCA scores being uncorrelated?
118997
What are the four axes on PCA biplot?
21224
Applying PCA to data that fail a normality test
118103
Does PCA's reconstruction error get reduced with more PCs being used?
51254
How to project a new vector onto the PC space using kernel PCA?
116362
Is PCA unstable under multicollinearity?
25410
What is an intuitive explanation for how PCA turns from a geometric problem (with distances) to a linear algebra problem (with eigenvectors)?
154757
One component in PCA is always the mean vector in two-dimensions but not three
84446
How to project a new vector onto PCA space?
24814
Is PCA still done via the eigendecomposition of the covariance matrix when dimensionality is larger than the number of observations?
56706
Defining the appropriate Projected Coordinate System
55847
PCA demeaning the data
119662
understanding projection matrices
85059
Tool for generating correlated data sets
113346
What is the proper association measure of a variable with a PCA component (on a biplot / loading plot)?
139690
Which variables should I transform, center, and/or standardize in my data for Principal Component Analysis?
53419
Nice presentation of correlation matrix