Initialize.corStruct {nlme} | R Documentation |

## Initialize corStruct Object

### Description

This method initializes `object`

by evaluating its associated
covariate(s) and grouping factor, if any is present, in `data`

,
calculating various dimensions and constants used by optimization
algorithms involving `corStruct`

objects (see the appropriate
`Dim`

method documentation), and assigning initial values for
the coefficients in `object`

, if none were present.

### Usage

## S3 method for class 'corStruct':
Initialize(object, data, ...)

### Arguments

`object` |
an object inheriting from class `corStruct`
representing a correlation structure. |

`data` |
a data frame in which to evaluate the variables defined in
`formula(object)` . |

`...` |
this argument is included to make this method compatible
with the generic. |

### Value

an initialized object with the same class as `object`

representing a correlation structure.

### Author(s)

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

### See Also

`Dim.corStruct`

### Examples

cs1 <- corAR1(form = ~ 1 | Subject)
cs1 <- Initialize(cs1, data = Orthodont)

[Package

*nlme* version 3.1-57

Index]