Summarize an lme Object

Usage

summary(object, verbose)

Arguments

object an object inheriting from class lme, representing a fitted linear mixed-effects model.
verbose an optional logical value used to control the amount of output in the print.summary.lme method. Defaults to FALSE.

Description

Additional information about the linear mixed-effects fit represented by object is extracted and included as components of object. The returned object is suitable for printing with the print.summary.lme method.

Value

an object inheriting from class summary.lme with all components included in object (see lmeObject for a full description of the components) plus the following components:
corFixed approximate correlation matrix for the fixed effects estimates
zTable a data frame with columns Value, Std. Error, z-value, and p-value representing respectively the fixed effects estimates, their approximate standard errors, the ratios between the estimates and their standard errors, and the associated p-value under a normal approximation. Rows correspond to the different fixed effects.
residuals if more than five observations are used in the lme fit, a vector with the minimum, 25 quantile, and maximum of the innermost grouping level residuals distribution; else the innermost grouping level residuals.
AIC the Akaike Information Criterion corresponding to object.
BIC the Bayesian Information Criterion corresponding to object.

Author(s)

Jose Pinheiro and Douglas Bates

See Also

lme, AIC, BIC, print.summary.lme

Examples

library(lme)
data(Orthodont)
fm1 <- lme(distance ~ age, Orthodont, random = ~ age | Subject)
summary(fm1)


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