Extends a formula with predictors
Extends a formula with predictors
extend.formula( formula = ~0, predictors = NULL, auxiliary = TRUE, include.intercept = FALSE, ... )
formula |
A formula. If it is
not a formula, the formula is internally reset to |
predictors |
A character vector of variable names. |
auxiliary |
A logical that indicates whether the variables
listed in |
include.intercept |
A logical that indicated whether the intercept should be included in the result. |
A formula
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