mda: model.matrix.mars – R documentation

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model.matrix.mars

Produce a Design Matrix from a ‘mars’ Object

Produce a design matrix from a ‘mars’ object.

## S3 method for class 'mars'
model.matrix(object, x, which, full = FALSE, ...)

`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.
`...`	further arguments to be passed from or to methods.

A model matrix corresponding to the selected columns.