nlme: getCovariateFormula – R documentation

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getCovariateFormula

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)

José Pinheiro and Douglas Bates bates@stat.wisc.edu

Examples

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

nlme

Linear and Nonlinear Mixed Effects Models

v3.1-152

GPL (>= 2) | file LICENCE

Authors

José Pinheiro [aut] (S version), Douglas Bates [aut] (up to 2007), Saikat DebRoy [ctb] (up to 2002), Deepayan Sarkar [ctb] (up to 2005), EISPACK authors [ctb] (src/rs.f), Siem Heisterkamp [ctb] (Author fixed sigma), Bert Van Willigen [ctb] (Programmer fixed sigma), Johannes Ranke [ctb] (varConstProp()), R-core [aut, cre]

Initial release

2021-02-03