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Co-Effect Analysis Of Variance: A New Method For Unbalanced Data, Andre Plante
Co-Effect Analysis Of Variance: A New Method For Unbalanced Data, Andre Plante
Conference on Applied Statistics in Agriculture
For fixed-effect models one can always, according to the Gauss-Markov Theorem, uniquely determine independent variables called source identifiers, each corresponding to a source of variation. When linearly combined, source identifiers can generate all possible expected values for the response variable. The co-effect method uses regression of the response variable on source identifiers. Corresponding regression coefficients are, by definition, unbiased estimates of co-effects, and satisfy the same restrictions as those imposed on main effects and interaction effects in standard analysis of variance. with balanced data, co-effect analysis gives results identical to those of the standard method; with unbalanced data, however, results …