Internal function to compute -2LL using unstandardized parameters.
min2LL_ono(N, J, Y, MISS, as, bs, theta, Ms, Kaps)The number of observations. (> 0)
The number of items. (> 0)
A N by J matrix of item responses.
A N by J matrix of missing data indicators.
A matrix of item loadings.
A vector of threshold parameters.
A matrix of factor scores.
A vector of the number of score categories. Note 2 = two parameter normal ogive, >2 ordinal normal ogive.
A matrix of category thresholds.
-2LL.