nlme (version 3.1-16)

Names.formula: Extract Names from a formula

Description

This method function returns the names of the terms corresponding to the right hand side of object (treated as a linear formula), obtained as the column names of the corresponding model.matrix.

Usage

## S3 method for class 'formula':
Names(object, data, exclude)

Value

a character vector with the column names of the model.matrix corresponding to the right hand side of object which are not listed in excluded.

See Also

model.matrix, terms, Names

Examples

data(Orthodont)
Names(distance ~ Sex * age, data = Orthodont)