{ "_id": "6ad92796db07788da70a98d0", "Package": "cndplantanalysis", "Type": "Package", "Title": "Compositional Nutrient Diagnosis for Plant Tissue Analysis", "Version": "1.0.2", "Authors@R": "c(\nperson(\n\"Blesson B.\", \"Varghese\",\nemail = \"blessonvarghese1234@gmail.com\",\nrole = c(\"aut\", \"cre\")\n),\nperson(\n\"Rohith\", \"A K\",\nemail = \"rohithosm@gmail.com\",\nrole = \"aut\"\n),\nperson(\n\"Anjali\", \"S.\",\nemail = \"anjaliscdlm@gmail.com\",\nrole = \"aut\"\n),\nperson(\n\"Aliya Shirin\", \"K S\",\nemail = \"aliyashirin1998@gmail.com\",\nrole = \"aut\"\n),\nperson(\n\"Hilal\", \"Mohamed\",\nemail = \"hilalmohamed10m@gmail.com\",\nrole = \"aut\"\n)\n)", "Description": "Provides an implementation of Compositional Nutrient\nDiagnosis (CND) for plant tissue tests. Computes scale\ninvariant simplex filling values(Rd), row-centered log-ratios\n(CLR), iterative database partitioning via Cate-Nelson\nprocedures, cubic polynomial regression of cumulative variance\nratio functions to determine inflection point yield cutoffs,\ncritical CND nutrient imbalance thresholds (r^2) using the\nchi-square distribution, diagnostic standardized indices (Ix)\nand automated Cate Nelson scatter partitioning. Includes\nlinear, non-linear, cumulative variance, chi-square and\nquadrant plotting functions.Methodology and theoretical\nframeworks are grounded in Parent and Dafir (1992)\n and Khiari et al. (2001)\n.", "License": "GPL-3", "Encoding": "UTF-8", "RoxygenNote": "7.3.2", "Config/testthat/edition": "3", "LazyData": "true", "NeedsCompilation": "no", "Packaged": { "Date": "2026-10-21 20:56:23 UTC", "User": "root" }, "Author": "Blesson B. Varghese [aut, cre], Rohith A K [aut], Anjali S.\n[aut], Aliya Shirin K S [aut], Hilal Mohamed [aut]", "Maintainer": "Blesson B. 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