{ "_id": "6a1ed884b401979e7340f137", "Package": "watson", "Type": "Package", "Title": "Fitting and Simulating Mixtures of Watson Distributions", "Version": "1.0.0", "Authors@R": "c(\nperson(\"Lukas\", \"Sablica\", email = \"lsablica@wu.ac.at\", role = c(\"aut\", \"cre\"),\ncomment = c(ORCID = \"0000-0001-9166-4563\")),\nperson(\"Kurt\", \"Hornik\", email = \"Kurt.Hornik@wu.ac.at\", role = \"aut\",\ncomment = c(ORCID = \"0000-0003-4198-9911\")),\nperson(\"Josef\", \"Leydold\", email = \"Josef.Leydold@wu.ac.at\", role = \"aut\",\ncomment = c(ORCID = \"0000-0002-9076-4893\")),\nperson(\"Gerard\", \"Jungman\", role = c(\"ctb\",\"cph\"), comment = \"Author and copyright holder of included GNU GSL code\"),\nperson(\"Brian\", \"Gough\", role = c(\"ctb\",\"cph\"), comment = \"Author and copyright holder of included GNU GSL code\")\n)", "Maintainer": "Lukas Sablica ", "Description": "Tools for fitting and simulating mixtures of Watson\ndistributions. The package is described in Sablica, Hornik and\nLeydold (2026) . The random sampling\nscheme of the package offers two sampling algorithms that are\nbased of the results of Sablica, Hornik and Leydold (2022)\n. What is more, the package\noffers a smart tool to combine these two methods, and based on\nthe selected parameters, it approximates the relative sampling\nspeed for both methods and picks the faster one. In addition,\nthe package offers a fitting function for the mixtures of\nWatson distribution, that uses the expectation-maximization\n(EM) algorithm. Special features are the possibility to use\nmultiple variants of the E-step and M-step, sparse matrices for\nthe data representation and state of the art methods for\nnumerical evaluation of needed special functions using the\nresults of Sablica and Hornik (2022) \nand Sablica and Hornik (2024) .", "License": "GPL-3", "Encoding": "UTF-8", "URL": "https://github.com/lsablica/watson", "BugReports": "https://github.com/lsablica/watson/issues", "RoxygenNote": "7.3.3", "Config/testthat/edition": "3", "Repository": "https://lsablica.r-universe.dev", "Date/Publication": "2026-01-19 15:41:34 UTC", "RemoteUrl": "https://github.com/lsablica/watson", "RemoteRef": "HEAD", "RemoteSha": "e5e56e52c9ebf38fb8860d3a9195ba685201bcf0", "NeedsCompilation": "yes", "Packaged": { "Date": "2026-05-20 09:39:17 UTC", "User": "root" }, "Author": "Lukas Sablica [aut, cre] (ORCID:\n),\nKurt Hornik [aut] (ORCID: ),\nJosef Leydold [aut] (ORCID: ),\nGerard Jungman [ctb, cph] (Author and copyright holder of included 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