Calculates the cLik/logcLik for one person or a whole sample given parameters beta.
x |
0/1-vector of pattern of one person |
Y |
0/1-matrix of patterns of all persons (npersons x nitems) |
betas |
vector of item easiness parameters, either for a person, or a Matrix of calculated itemparameters for all persons already including DIF-effects (npersons x nitems) |
conditional Likelihood/log conditional Likelihood for the person or the sample
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