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Regression functions

Contrasts can be specified in the regression models with the following functions:

    COMPARISON Comparisons amongst the levels of a factor
    POL Polynomial contrasts of factor levels or of variate values
    REG Contrasts specified by a matrix of coefficients for factors or by a transposed data matrix for variates, also orthogonal polynomials

Smoothing of explanatory variates in a linear or generalized linear model can be specified by the function:

    LOESS Locally weighted regression effect of a variate (synonym LO)
    SSPLINE Smoothing spline effect of a variate (synonym S)
Updated on May 20, 2019

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