summary.asreml {asreml} | R Documentation

## Summarize an asreml object

### Description

A `summary` method for objects inheriting from class `asreml`.

### Usage

    ## S3 method for class 'asreml'
    summary(
      object,
      param = c("sigma", "gamma"),
      coef = FALSE,
      vparameters = FALSE,
      ...
    )

### Arguments

`object` | An `asreml` object.
`param` | if `"sigma"` (the default), random parameter values are reported on the sigma scale only, otherwise, if `"gamma"`, an additional column of variance ratios is returned.
`coef` | If `TRUE` (default is `FALSE`), the coefficients and their standard errors are included in the return object.
`vparameters` | If `TRUE` (default is `FALSE`), the variance parameters are included in the return object in list form.
`...` | Additional arguments.

### Value

A list of class `summary.asreml` with the following components:

call

  The `call` component from `object`.

loglik

  The `loglik` component from `object`.

nedf

  The `nedf` component from `object`.

sigma

  `sqrt(object\$sigma2)`.

varcomp

  A dataframe summarising the random parameter vector (`object$vparameters`). Variance component ratios are included if `param="gamma"`, and a measure of precision is included along with boundary constraints at termination and the percentage change in the final iteration.

aic

  Akaike information criterion.

bic

  Bayesian information criterion.

distribution

  A character string identifying the error distribution(s) if `object$deviance != 0`.

link

  A character string identifying the link function(s) if `object$deviance != 0`.

deviance

  The deviance from the fit if `object$deviance != 0`.

heterogeneity

  Variance heterogeneity (`deviance/nedf`) if `object$deviance != 0`.

coef.fixed

  A matrix of coefficients and their standard errors for fixed effects if `coef=TRUE`.

coef.random

  A matrix of coefficients and their standard errors for random effects if `coef=TRUE`.

coef.sparse

  A matrix of coefficients and their standard errors for sparse-fixed effects if `coef=TRUE`.

vparameters

  A list of variance structures with matrices converted to full dense form. For `ante` and `chol` models the components are given in `varcomp` and returned in `gammas` in variance-covariance form.

[Package asreml version 4.1.0.176 Index]