getCovariate.data.frame: Extract Data Frame Covariate

In nlme: Linear and Nonlinear Mixed Effects Models

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)

José Pinheiro and Douglas Bates [e-mail]

See Also

getCovariateFormula

Examples

getCovariate(Orthodont)

nlme documentation built on Nov. 27, 2023, 5:09 p.m.