meff.asreml {asreml}R Documentation

Marker effects.

Description

Calculate regressor (marker) effects using the original regressor scores and an asreml fit using the known subject relationship matrix.

Usage

## S3 method for class 'asreml'
meff(object, effects = ~NULL, mef = list(),
  se = FALSE, evaluate = TRUE, ...)

Arguments

object

An asreml object.

effects

A one sided formula giving the terms in the model (separated by "+") for which marker effects are to be calculated. If ~NULL, the default, the term associated with the first variance matrix in the mef list will be used.

mef

A list associating a known relationship matrix (rm) used in the model with a matrix of regressor scores, with components in the form rm = "regressor-scores".

se

If TRUE, calculate the standard errors of the effects; default FALSE.

evaluate

If TRUE (the default), evaluate the effects by a call to update.asreml, otherwise return the unevaluated call.

...

Additional arguments to asreml.

Value

An asreml object with a component mef, a list with length(mef) components containing the matrices of regressor effects and (optional) standard errors.


[Package asreml version 4.1.0.106 Index]