getCovariate.data.frame {nlme}R Documentation

Extract Data Frame Covariate

Description

The right hand side of form, stripped of any conditioning expression (i.e. an expression following a | operator), is evaluated in object.

Usage

## S3 method for class 'data.frame':
getCovariate(object, form, data)

Arguments

object an object inheriting from class data.frame.
form an optional formula specifying the covariate to be evaluated in object. Defaults to formula(object).
data some methods for this generic require a separate data frame. Not used in this method.

Value

the value of the right hand side of form, stripped of any conditional expression, evaluated in object.

Author(s)

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

See Also

getCovariateFormula

Examples

getCovariate(Orthodont)

[Package nlme version 3.1-80 Index]