Package: cndplantanalysis
Type: Package
Title: Compositional Nutrient Diagnosis for Plant Tissue Analysis
Version: 1.0.2
Authors@R: 
  c(
    person(
      "Blesson B.", "Varghese",
      email = "blessonvarghese1234@gmail.com",
      role = c("aut", "cre")
    ),
    person(
      "Rohith", "A K",
      email = "rohithosm@gmail.com",
      role = "aut"
    ),  
    person(
      "Anjali", "S.",
      email = "anjaliscdlm@gmail.com",
      role = "aut"
    ), 
    person(
      "Aliya Shirin", "K S",
      email = "aliyashirin1998@gmail.com",
      role = "aut"
    ),  
    person(
      "Hilal", "Mohamed",
      email = "hilalmohamed10m@gmail.com",
      role = "aut"
    )  
  )
Description: Provides an implementation of Compositional Nutrient Diagnosis (CND) for plant tissue tests.
  Computes scale invariant simplex filling values(Rd), row-centered log-ratios (CLR), iterative database 
  partitioning via Cate-Nelson procedures, cubic polynomial regression of cumulative variance ratio functions to
  determine inflection point yield cutoffs, critical CND nutrient imbalance thresholds (r^2) using the chi-square distribution,
  diagnostic standardized indices (Ix) and automated Cate Nelson scatter partitioning. Includes linear, non-linear, cumulative variance, 
  chi-square and quadrant plotting functions.Methodology and theoretical frameworks are grounded in Parent and Dafir (1992)
  <doi:10.21273/JASHS.117.2.239> and Khiari et al. (2001) <doi:10.2134/agronj2001.934802x>.
License: GPL-3
Encoding: UTF-8
RoxygenNote: 7.3.2
Imports: ggplot2, graphics, utils, stats
Suggests: readxl, testthat (>= 3.0.0)
Config/testthat/edition: 3
Depends: R (>= 3.5)
LazyData: true
NeedsCompilation: no
Packaged: 2026-10-11 17:24:00 UTC; bejoy
Author: Blesson B. Varghese [aut, cre],
  Rohith A K [aut],
  Anjali S. [aut],
  Aliya Shirin K S [aut],
  Hilal Mohamed [aut]
Maintainer: Blesson B. Varghese <blessonvarghese1234@gmail.com>
Repository: CRAN
Date/Publication: 2026-10-21 15:40:13 UTC
