{ "_id": "6af060e294cdbf48db2aff35", "Package": "nutrigon", "Title": "Angular Separation Between Nutritional Optima", "Version": "0.1.0", "Authors@R": "person(\"Juliano\", \"Morimoto\", email = \"juliano.morimoto@abdn.ac.uk\", role = c(\"aut\", \"cre\"), comment = c(ORCID = \"0000-0003-3561-1920\"))", "Description": "Fits response surfaces (ordinary least squares,\ngeneralized linear models with any family including\nquasi-families, or linear mixed-effects models) to trait data\ncollected under the Geometric Framework for Nutrition and\ncomputes the angular separation (theta) between the nutritional\noptima of two traits, with percentile bootstrap confidence\nintervals that propagate surface-estimation uncertainty (case\nor stratified resampling; paired or unpaired). Provides a\ndesign-matched coverage check that simulates validation\nconfigurations on the user's own design and at the\nsignal-to-noise ratio of the fitted surfaces, an equivalence\ntest for alignment of optima, local Gaussian and mean\ncurvature, and a surface-area ratio. Includes the Drosophila\nlifespan and fecundity dataset of Lee et al. (2008) \"Lifespan\nand reproduction in Drosophila: new insights from nutritional\ngeometry\" as a worked example.\nThe angular approach was introduced in Morimoto (2023)\n\"Nutrigonometry I: using right-angle triangles to quantify\nnutritional trade-offs in performance landscapes\"\n.", "License": "MIT + file LICENSE", "Encoding": "UTF-8", "LazyData": "true", "Roxygen": "list(markdown = TRUE)", "RoxygenNote": "7.3.2", "VignetteBuilder": "knitr", "Config/testthat/edition": "3", "URL": "https://github.com/jmor2753/nutrigon", "BugReports": "https://github.com/jmor2753/nutrigon/issues", "NeedsCompilation": "no", "Repository": "https://jmor2753.r-universe.dev", "Date/Publication": "2026-10-23 12:28:03 UTC", "RemoteUrl": "https://github.com/jmor2753/nutrigon", "RemoteRef": "HEAD", "RemoteSha": "bd9496233cc3d033ceb718d525476f3b41893038", "Packaged": { "Date": "2026-11-08 11:40:56 UTC", "User": "root" }, "Author": "Juliano Morimoto [aut, cre] (ORCID:\n)", "Maintainer": "Juliano Morimoto ", 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