Revision as of 08:33, 20 December 2023 edit Thatsme314 (talk \| contribs) Extended confirmed users 7,865 edits m →Intuition: punctuation ← Previous edit		Revision as of 16:02, 4 March 2024 edit undo 2001:67c:10ec:204b:8000::9d5 (talk) →Intuition Next edit →
Line 35: \end{align}</math>. Therefore, since <math>\mathbf{xAx}</math> is on the column space of <math>\mathbf{A}</math>, the projection matrix, which maps <math>\mathbf{b}</math> onto <math>\mathbf{x}</math> is just <math>\mathbf{A}</math>, or <math>\mathbf{A}\left(\mathbf{A}^\textsf{T}\mathbf{A}\right)^{-1}\mathbf{A}^\textsf{T}</math>. == Linear model ==

Projection matrix: Difference between revisions