R/modelfit.cor.poly.R

Defines functions modelfit.cor.poly

Documented in modelfit.cor.poly

## File Name: modelfit.cor.poly.R
## File Version: 0.08


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# model fit for polytomous item responses
modelfit.cor.poly <- function( data, probs, theta.k, f.qk.yi){
    # create input for tam.modelfit
    tamobj <- list()
    resp.ind <- 1 - is.na(data)
    resp <- data
    resp[ is.na(data) ] <- 0
    tamobj$resp <- as.matrix(resp)
    tamobj$resp.ind <- resp.ind
    tamobj$rprobs <- probs
    tamobj$theta <- vec2mat.sirt(theta.k)
    tamobj$hwt <- f.qk.yi
    # apply tam.modelfit
    tmod <- TAM::tam.modelfit( tamobj)
    # tmod <- tam.modelfit( tamobj)
    return(tmod)
            }
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alexanderrobitzsch/sirt documentation built on March 18, 2024, 1:29 p.m.