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IRTpp (version 0.2.6.1)

loglik.f: LogLikelihood of a IRT model

Description

LogLikelihood of a IRT model for UIRT (Fast version)

Usage

loglik.f(test, traits, z)

Arguments

test
A data frame or a matrix with the responses of the test.
traits
A vector with each individual parameter.
z
A list with the parameters a, b and c specified by keys. Each key must contain a vector of the item parameters for each parameter.

Value

The value of the loglikelihood.

See Also

loglik