search for: multicategory

...t) a member of the glm family? I had thought the answer is no, mainly because glm and other R functions for glms never mention multi-category qualitative dependent variables and also because the distribution does not seem to fall into the exponential family. However, some textbooks do include the multicategory models in the GLM treatment. -- Paul E. Johnson Professor, Political Science 1541 Lilac Lane, Room 504 University of Kansas

...the category of variable j that i was in (i.e. for which g_{ijl}=1). This generalizes multidimensional IRT models, the choice models used for voting data in political science, the Goodman-Haberman-Gilula-Ritov distance association models, the Luce-Shepard choice model, and so on, to multivariate/multicategory data. It is part of the "Gifi Goes Logistic" project. The algorithm is based on majorization, starting with multiple correspondence analysis, and each iteration does one step of a truncated SVD (with a different target in each iteration). The movies show the movement of X from one it...

...kage (metric and nonmetric multidimensional scaling, individual difference models, rectangular matrices, constrained scaling, metric nearness problem, Shepard-Luce models). Status: mostly done. -- logitfold package (logistic likelihood solution to nonmetric unfolding for binary and multicategory data, multidimensional choice models, logistic principal component analysis and canonical analysis, roll-call models, multidimensional Rasch models). Status: partly done. -- lssem package (linear structural equation models with latent variables, reformulated as matrix decompositi...