Matrix.reStruct {nlme} | R Documentation

## Assign reStruct Matrices

### Description

The individual matrices in `value` are assigned to each `pdMat` component of `object`, in the order they are listed. The new matrices must have the same dimensions as the matrices they are meant to replace.

### Usage

    ## S3 method for class 'reStruct':
    matrix(object) <-  value

### Arguments

`object` | an object inheriting from class `reStruct`, representing a random effects structure and consisting of a list of `pdMat` objects.
`value` | a matrix, or list of matrices, with the new values to be assigned to the matrices associated with the `pdMat` components of `object`.

### Value

an `reStruct` object similar to `object`, but with the coefficients of the individual `pdMat` components modified to produce the matrices listed in `value`.

### Author(s)

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

### See Also

`reStruct`, `pdMat`

### Examples

    data(Pixel)
    rs1 <- reStruct(list(Dog = ~day, Side = ~1), data = Pixel)
    matrix(rs1) <- list(diag(2), 3)

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