GLM, GLZ, GRM, PLS, and GDA Syntax - Keyword Surface

SURFACE [=] Continuous predictor (covariates) list;

Example

SURFACE = TIME DEGREES;

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

Applies to

GLM, GLZ, GRM, PLS, and GDA.

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