GLM, GLZ, GRM, and PLS Syntax - Keyword Mixture

MIXTURE [=] Continuous predictor (covariates) list;

Example
MIXTURE = MULLET SHEEPSHD CROAKER;

Optional keyword, currently not used in computations; specify the continuous predictors (covariates, specified via the COVARIATE keyword) that are used in a mixture response surface design (as specified via the DESIGN keyword).

Applies to. GLM, GRM, GLZ, and PLS.