How to understand "factor loadings" in PCA?
10466
Making sense of principal component analysis, eigenvectors & eigenvalues
135047
Why does PCA maximize total variance of the projection?
89237
PCA: Eigenvectors of opposite sign and not being able to compute eigenvectors with `solve` in R
14181
Can averaging all the variables be seen as a crude form of PCA?
67557
Imputation of missing values for PCA
78310
Best factor extraction methods in factor analysis
3089
Why PCA of data by means of SVD of the data?
18014
Matrix multiplication: interpreting and understanding the process
29381
How to perform dimensionality reduction with PCA in R
112934
Is PCA followed by a rotation (such as varimax) still PCA?
41608
Weighted principal components analysis
11188
Can principal component analysis be applied to datasets containing a mix of continuous and categorical variables?
126136
Fundamental question about dimensional analysis
16523
How to compute classification accuracy of PCA?
7779
How does centering the data get rid of the intercept in regression and PCA?
139690
Which variables should I transform, center, and/or standardize in my data for Principal Component Analysis?
101622
Choosing number of principal components to retain