Built-in Mathematica Symbol

IncludeConstantBasis

IncludeConstantBasis
is an option for LinearModelFit and other fitting functions which specifies whether a constant term should be included if not explicitly given in the list of basis functions.

MORE INFORMATION

The default setting IncludeConstantBasis->True adds a constant basis to the model if one is not specified in the list of basis functions.

Linear and generalized linear models typically compare the fitted model to the mean response model which contains only a constant basis function.

Setting IncludeConstantBasis->False can be used to fit models without a constant basis function.

EXAMPLES

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Basic Examples (1)

Fit a simple linear regression model:

Fit the linear model with intercept zero:

Fit a simple linear regression model:

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Fit the linear model with intercept zero:

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Scope (2)

Fit a generalized linear model:

Fit the model without a constant term in the linear predictor:

Fit logit models with and without a constant term:

Probit models: