![]() This car, or this vector, is mine and not someone else’s. Something particular, characteristic and definitive. The eigen in eigenvector comes from German, and it means something like “very own.” For example, in German, “mein eigenes Auto” means “my very own car.” So eigen denotes a special relationship between two things. It builds on those ideas to explain covariance, principal component analysis, and information entropy. This post introduces eigenvectors and their relationship to matrices in plain language and without a great deal of math. ![]() ![]() A Beginner's Guide to Eigenvectors, Eigenvalues, PCA, Covariance and Entropy
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