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drizopoulos
ltm:Latent Trait Models under IRT
Analysis of multivariate dichotomous and polytomous data using latent trait models under the Item Response Theory approach. It includes the Rasch, the Two-Parameter Logistic, the Birnbaum's Three-Parameter, the Graded Response, and the Generalized Partial Credit Models.
Maintained by Dimitris Rizopoulos. Last updated 3 years ago.
30 stars 9.61 score 1.0k scripts 27 dependents
cran
NonNorMvtDist:Multivariate Lomax (Pareto Type II) and Its Related Distributions
Implements calculation of probability density function, cumulative distribution function, equicoordinate quantile function and survival function, and random numbers generation for the following multivariate distributions: Lomax (Pareto Type II), generalized Lomax, Mardia’s Pareto of Type I, Logistic, Burr, Cook-Johnson’s uniform, F and Inverted Beta. See Tapan Nayak (1987) <doi:10.2307/3214068>.
Maintained by Zhixin Lun. Last updated 5 years ago.
1.00 score