The Nature of Collinearity

Article

Mandel, John   (1989, ASQC)   National Institute of Standards and Technology

Journal of Quality Technology    Vol. 21    No. 4
QICID: 5619    October 1989    pp. 268-276
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Article Abstract

Collinearity is views as an expression of the shape of the regressor variables. By applying the singular value decomposition to the matrix of regressors, a geometrical figure is derived, called the "effective prediction domain" (EPD), within which prediction from the regression value is valid. The further away the prediction point is from the EPD, the less confidence on can have in the predicted value.

Keywords

Collinearity,Multiple regression,Prediction


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