Individual Classification for Fitted Models

Computes individual classifications based on a fitted model.

IRT.classify(object, type="MLE")

Arguments

object

Fitted model for which methods IRT.likelihood and IRT.posterior are defined.

type

Type of classification: "MLE" (maximum likelihood estimate) or "MAP" (maximum of posterior distribution)

Value

List with entries

class_theta

Individual classification

class_index

Class index of individual classification

class_maxval

Maximum value corresponding to individual classification

See also

See IRT.factor.scores for similar functionality.

Examples

if (FALSE) {
#############################################################################
# EXAMPLE 1: Individual classification data.ecpe
#############################################################################

data(data.ecpe, package="CDM")
dat <- data.ecpe$dat[,-1]
Q <- data.ecpe$q.matrix

#** estimate GDINA model
mod <- CDM::gdina(dat, q.matrix=Q)
summary(mod)

#** classify individuals
cmod <- CDM::IRT.classify(mod)
str(cmod)
}