vcov.mixor: Return Variance-Covariance Matrix for a Mixor Model Object

In mixor: Mixed-Effects Ordinal Regression Analysis

Return Variance-Covariance Matrix for a Mixor Model Object

Description

Returns the variance-covariance matrix of a fitted mixor model object.

Usage

## S3 method for class 'mixor'
vcov(object, ...)

Arguments

object	a mixor object.
...	other arguments.

Value

A matrix of the estimated covariances between the parameter estimates in the model.

Author(s)

Kellie J. Archer, Donald Hedeker, Rachel Nordgren, Robert D. Gibbons

See Also

See Also as mixor, summary.mixor

Examples

library("mixor")
data("schizophrenia")
### Random intercept
SCHIZO1.fit<-mixor(imps79o ~ TxDrug + SqrtWeek + TxSWeek, data=schizophrenia, 
     id=id, link="probit")
summary(SCHIZO1.fit)
vcov(SCHIZO1.fit)

mixor documentation built on July 3, 2026, 9:07 a.m.