coef.asreml {asreml} | R Documentation

## Extract model coefficients

### Description

Extract model coefficients from an `asreml` object.

### Usage

    ## S3 method for class 'asreml'
    coef(object, list = FALSE, pattern = ~NULL, ...)

### Arguments

`object` | An `asreml` object.
`list` | If `TRUE`, the coefficients are returned in a named list of length the number of terms in the model; default `FALSE`.
`pattern` | A term in the model as a one sided formula. A regular expression is constructed from `pattern` to extract a subset of coefficients.
`...` | Additional arguments.

### Value

If neither `pattern` nor `list` is set, then a list of length 3 with the following components:

fixed

  solutions to the mixed model equations for the fixed (dense) terms.

random

  E-BLUPs for the effects in the random model.

sparse

  solutions to the mixed model equations for the fixed sparse-stored terms.

where each component is a matrix with a `dimnames` attribute.

If `list=TRUE`, a list object where each component is a single column matrix corresponding to a term in the model; othwerwise a single column matrix of effects as specified by `pattern`.

### Examples

    ## Not run:
    data(oats)
    oats.asr <- asreml(yield ~ Variety*Nitrogen, random = ~ Blocks/Wplots, data=oats)
    coef(oats.asr)
    coef(oats.asr, list=TRUE)
    coef(oats.asr, pattern = ~Blocks:Wplots)

    ## End(Not run)

[Package asreml version 4.1.0.176 Index]