model.matrix.mars {mda}R Documentation

Produce a Design Matrix from a `mars' Object.

Description

Produce a design matrix from a `mars' object.

Usage

model.matrix.mars(object, x, which, full = FALSE, ...)

Arguments

object a mars object.
x optional argument; if supplied, the mars basis functions are evaluated at these new observations.
which which columns should be used. The default is to use the columns described by the component selected.terms on object.
full if TRUE the entire set of columns are selected, even redundant ones. This is used for updating a mars fit.

Value

A model matrix corresponding to the selected columns.

See Also

mars, predict.mars