Extract reStruct Grouping Formula

Usage

getGroupsFormula(object, asList)

Arguments

object an object inheriting from class reStruct, representing a random effects structure and consisting of a list of pdMat objects.
asList an optional logical value. If TRUE the returned value with be a list of formulas; else, if FALSE the returned value will be a one-sided formula. Defaults to FALSE.

Description

The names of the object components are used to construct a one-sided formula, or a named list of formulas, depending on the value of asList. The components of the returned list are ordered from outermost to innermost level.

Value

a one-sided formula, or a list of one-sided formulas, with the grouping structure associated with object.

Author(s)

Jose Pinheiro and Douglas Bates

See Also

reStruct, getGroups

Examples

library(lme)
rs1 <- reStruct(list(A = pdDiag(diag(2), ~age), B = ~1))
getGroupsFormula(rs1)


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