Obtaining eigenvectors of a matrix with more features than observations
18487
Why are there only $n-1$ principal components for $n$ data if the number of dimensions is $\ge n$?
602
How get eigenvectors without phase jump?
108132
How Do I Compute the Eigenvalues of a Small Matrix?
156868
Why is finding $M$ eigenvectors on smaller matrix valid?
109471
The eigenvectors of the transpose operator
14465
"Normalizing" variables for SVD / PCA
88975
I need an intuitive explanation of eigenvalues and eigenvectors
96811
How to find the eigenvalues of a block-diagonal matrix?
70245
Why is the eigenvector in PCA taken to be unit norm?
70571
Obtaining covariance matrix from correlation matrix
81049
What norm of the reconstruction error is minimized by the low-rank approximation matrix obtained with PCA?
4244
How to compute PCA scores from eigendecomposition of the covariance matrix?
56083
Find the eigenvalues of a projection operator
49158
Multiplicity of eigenvalues
59058
Eigen-Decomposition of Householder operator
148679
Modelling with more variables than data points
67095
Spectral Measures: Embedding