Estimability of parameters in a linear model and related characterizations

Stratis Kounias and Miltiadis Chalikias

Statistics & Probability Letters, 2008, vol. 78, issue 15, 2437-2439

Abstract: An alternative criterion is presented for a linear function of the unknown parameters, in a linear model, to be estimable. If there is a linear relationship between members of a subset of the columns of the design matrix , then the parameters associated with all the columns in that subset are not estimable. Also any part of their linear relationship is non-estimable.

Date: 2008
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