Thomas Lumley 4/1/2024

Symbolically nested

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The article introduces the author's concept of 'symbolically nested' statistical models, where a submodel is defined by setting specific coefficients to zero based on the model's symbolic representation. It details the computational benefits for tests like the Wald test and contrasts this with likelihood ratio tests. The discussion extends to the specific importance of symbolic nesting in the context of complex survey analysis using Rao-Scott tests.

Symbolically nested

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