Thomas Lumley • 2/28/2020

Quadratic trend tests in survey package

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This article provides a detailed technical guide on performing quadratic trend tests in the R survey package. It addresses a specific user question about testing linear contrasts on survey data spanning multiple years, with practical code examples using the National Survey on Drug Use and Health dataset. The content covers survey design, replicate weights, contrast calculations, and statistical interpretation.

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#R #Statistical Analysis #Survey Package
Quadratic trend tests in survey package

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