vcov-method {mirt}R Documentation

Extract parameter variance covariance matrix

Description

Extract parameter variance covariance matrix

Usage

## S4 method for signature 'SingleGroupClass'
vcov(object)

Arguments

object

an object of class SingleGroupClass, MultipleGroupClass, or MixedClass

Examples


## Not run: 
x <- mirt(Science, 1, SE=TRUE)
vcov(x)


## End(Not run)
[Package mirt version 1.21 Index]