Version 0.9-99 of package "subselect" is now on CRAN. The subselect package has functions that search for k-variable subsets of a p-variable (p>k) data set that are optimal under some criterion. Search algorithms include a full search algorithm "leaps", based on Furnival and Wilson's leaps and bounds algorithm, and three random search algorithms: a genetic algorithm ("genetic"), a simulated annealing algorithm ("anneal") and a modified local search algorithm ("improve"). Previous versions of subselect had three criteria for optimality ("rm", "rv" and "gcd"), based on exploratory data analysis considerations. This new version adds four new criteria ("tau2", "zeta2", "xi2" and "ccr12"), associated with the multivariate linear hypothesis and the well-known test statistics for that hypothesis (Wilks' lambda, Roy's largest root, Pillai's trace and the Hotelling-Lawley statistic). Subselect 0.9-99 also includes two functions that prepare the arguments for the search functions associated with the new criteria in the most frequent contexts of application of the multivariate linear hypothesis - linear regression (function "lmHmat") and linear discriminant analysis ("ldaHmat") - as well as another function ("glhHmat") that prepares these arguments for an analysis associated with a hypothesis specified by the user. The package documentation includes numerous examples.
Feedback is appreciated. Best regards, Jorge Cadima -- Jorge Cadima Departamento de Matemática Instituto Superior de Agronomia Universidade Técnica de Lisboa Tapada da Ajuda 1349-017 Lisboa Portugal e-mail: [EMAIL PROTECTED] phone: +351 21 365 3317 fax: +351 21 363 07 23 _______________________________________________ R-packages mailing list [EMAIL PROTECTED] https://stat.ethz.ch/mailman/listinfo/r-packages ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html