mirt (version 1.19)

vcov-method: Extract parameter variance covariance matrix

Description

Extract parameter variance covariance matrix

Usage

# S4 method for SingleGroupClass
vcov(object)

Arguments

object

an object of class SingleGroupClass, MultipleGroupClass, or MixedClass

Examples

# NOT RUN {
# }
# NOT RUN {
x <- mirt(Science, 1, SE=TRUE)
vcov(x)

# }