formula.reStruct {nlme} | R Documentation

## Extract reStruct Object Formula

### Description

This method function extracts a formula from each of the components of `x`, returning a list of formulas.

### Usage

    ## S3 method for class 'reStruct':
    formula(x, asList, ...)

### Arguments

`x` | an object inheriting from class `reStruct`, representing a random effects structure and consisting of a list of `pdMat` objects.
`asList` | logical. Should the asList argument be applied to each of the components?
`...` | some methods for this generic require additional arguments. None are used in this method.

### Value

a list with the formulas of each component of `x`.

### Author(s)

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

### See Also

`formula`

### Examples

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

[Package nlme version 3.1-83 Index]