contrast: A collection of contrast methods. Contrast methods, in the style of the Design package, for fit objects produced by the lm, glm, gls, and geese functions.
References in zbMATH (referenced in 1 article )
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- Vandecandelaere, Machteld; Vansteelandt, Stijn; De Fraine, Bieke; Van Damme, Jan: The effects of early grade retention: effect modification by prior achievement and age (2016) MathEduc