Nothing
logLik.gpcm <-
function (object, ...) {
if (!inherits(object, "gpcm"))
stop("Use only with 'gpcm' objects.\n")
out <- object$log.Lik
df <- sum(sapply(object$coefficients, length))
if (object$constraint == "1PL")
df <- df - length(object$coefficients) + 1
if (object$constraint == "rasch")
df <- df - length(object$coefficients)
attr(out, "df") <- df
attr(out, "nobs") <- nrow(object$X)
class(out) <- "logLik"
out
}
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