Package: trialSizing
Type: Package
Title: Tools for Experimental Design Sizing
Version: 0.1.0
Authors@R: c(
    person(
      "Willyan", "Bandeira",
      email = "bandeira.wjab@gmail.com",
      role = c("aut", "cre"),
      comment = c(ORCID = "0000-0002-9430-3664")
    ),
    person(
      "Leonardo", "Pradebon",
      email = "leonardopradebon@gmail.com",
      role = "aut",
      comment = c(ORCID = "0000-0001-7827-6312")
    ),
    person(
      "Ivan", "Carvalho",
      email = "carvalho.irc@gmail.com",
      role = "aut",
      comment = c(ORCID = "0000-0001-7947-4900")
    ),
    person(
      "Murilo", "Loro",
      email = "muriloloro@gmail.com",
      role = "aut",
      comment = c(ORCID = "0000-0003-0241-4226")
    )
  )
Description: Sizes field experiments from uniformity-trial data,
        following the relationship between the coefficient of variation
        and plot size. Checks a trial for the spatial structure the
        sizing methods assume (semivariogram, Moran's I, kriged field
        map), summarises the coefficient of variation over every plot
        shape the grid admits, and estimates the optimal plot size by
        the modified maximum curvature method of Meier and Lessman
        (1971), by the linear response plateau (LRP) and quadratic
        response plateau (QRP) models, and by the closed form of
        Paranaiba, Ferreira and Morais (2009), which can be compared
        side by side. From the coefficient of variation at the optimum
        it derives the number of replications needed to detect a given
        difference between treatment means, as in Cargnelutti Filho and
        others (2014). Every method returns standardised diagnostic
        statistics, optional bootstrap uncertainty for the breakpoint,
        and publication-style plots.
License: GPL (>= 3)
URL: https://willyanjnr.github.io/trialSizing/,
        https://github.com/willyanjnr/trialSizing
BugReports: https://github.com/willyanjnr/trialSizing/issues
Encoding: UTF-8
Language: en
LazyData: true
Depends: R (>= 3.5)
Imports: ggplot2, stats, utils
Suggests: knitr, rmarkdown, patchwork, testthat (>= 3.0.0)
VignetteBuilder: knitr
Roxygen: list(markdown = TRUE)
Config/roxygen2/version: 8.0.0
Config/testthat/edition: 3
Repository: https://willyanjnr.r-universe.dev
Date/Publication: 2026-08-05 12:38:08 UTC
RemoteUrl: https://github.com/willyanjnr/trialsizing
RemoteRef: HEAD
RemoteSha: 175b5b28dd9223e5698e52bed7529332c8cf9596
NeedsCompilation: no
Packaged: 2026-10-13 13:13:13 UTC; root
Author: Willyan Bandeira [aut, cre] (ORCID:
    <https://orcid.org/0000-0002-9430-3664>),
  Leonardo Pradebon [aut] (ORCID:
    <https://orcid.org/0000-0001-7827-6312>),
  Ivan Carvalho [aut] (ORCID: <https://orcid.org/0000-0001-7947-4900>),
  Murilo Loro [aut] (ORCID: <https://orcid.org/0000-0003-0241-4226>)
Maintainer: Willyan Bandeira <bandeira.wjab@gmail.com>