R: Extract Covariates Formula

getCovariateFormula {nlme} | R Documentation

## Extract Covariates Formula

### Description

The right hand side of `formula(object)`, without any conditioning expressions (i.e. any expressions after a `|` operator) is returned as a one-sided formula.

### Usage

    getCovariateFormula(object)

### Arguments

`object` | any object from which a formula can be extracted.

### Value

a one-sided formula describing the covariates associated with `formula(object)`.

### Author(s)

Jose Pinheiro Jose.Pinheiro@pharma.novartis.com and Douglas Bates bates@stat.wisc.edu

### See Also

`getCovariate`

### Examples

    getCovariateFormula(y ~ x | g)
    getCovariateFormula(y ~ x)

[Package nlme version 3.1-89 Index]