kcirt (version 0.6.0)

kcirt.ystarinfo: Calculate State Information

Description

Calculate System Information imparted to States through $Y$*.

Usage

kcirt.ystarinfo(model)

Arguments

model

A kcirt model. A named list of class 'kcube.irt.model'.

Value

• A numeric, square, symmetric matrix, whose number of rows equals the number of model states (scales).

Examples

constructMap.ls <- list(
c(1,1,2,2),
c(1,1,3,3),
c(2,2,3,3),
c(1,1,2,2),
c(1,1,3,3),
c(2,2,3,3),
c(1,2),
c(2,3),
c(1,3)
)
    
    
qTypes <- rep("R", length(constructMap.ls))
    
mod <- kcirt.model(constructMap.ls=constructMap.ls, qTypes=qTypes, mxLambda=NULL)

mxInfo <- kcirt.ystarinfo(mod)

mxInfo

mxErrorVar <- solve(mxInfo)

mxErrorVar