English: Linear regression of y on X can be viewed as an orthogonal projection of vector y on the linear subspace spanned by X; with the OLS estimator being the coefficients of decomposition of the projected vector by the basis of X.
I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.
Captions
Add a one-line explanation of what this file represents
{{Information |Description={{en|1=Linear regression of y on X can be viewed as an orthogonal projection of vector y on the linear subspace spanned by X; with the OLS estimator being the coefficients of decomposition of the projected vector by the basis of