Determinacy in the Linear Model: Gauss to Bose and Koopmans |
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| Authors: | John Aldrich |
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| Institution: | University of Southampton, Southampton SO17 1BJ, UK. E-mail: |
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| Abstract: | Gauss showed that least squares fails to produce a unique solution only when the problem is indeterminate. This note considers his argument and the notion of indeterminacy underlying it. It also relates the argument to twentieth-century discussions of estimability and identifiability. |
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| Keywords: | Gauss Least squares Collinearity Rank Estimability Identifiability Fidelity |
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