lmekin.object {coxme}R Documentation

lmekin object

Description

This class of object is returned by the lmekin function to represent a fittd mixed effect linear model. Objects of this class currently have methods for print and residuals.

Details

The random effects are modeled internally as N(0, s^2A) where s^2 is the residual variance. The parameters of vcoef refer to A. THe printed results for the model have been multiplied by s, removing the factorization.

The variance matrix vvar is for the transformed parameters. For the details of the transformation see the individual variance functions. The coxmeFull routine, for instance, uses a log transform for variances. Use this with caution.

Value

A list with the folling components:

coefficients

a list with components fixed and random; the first will be NULL for a model with no fixed effects. The random component is itself a list, with an element for each random effect.

var

the variance matrix of the fixed effects

vcoef

the parameters of the variance matrix of the random effects.

vvar

variance matrix for vcoef

residuals

vector of residuals from the fit

method

either "ML" or "REML"

loglik

the log-likelihood for the fitted model

sigma

the estimated residual error

n

number of observations used

call

a copy of the call

na.action

this will be present if any observations were removed due to missing values

Author(s)

Terry Therneau

See Also

lmekin, coxmeFull, coxmeMlist


[Package coxme version 2.2-1 Index]