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 3.1-57

Index]