Package: combinIT
Type: Package
Title: A Combined Interaction Test for Unreplicated Two-Way Tables
Version: 2.0.1
Authors@R: c(
    person("Zahra", "Shenavari", email = "zshenavari@yahoo.com", role = "aut"),
    person("Hossein", "Haghbin", email = "haghbin@pgu.ac.ir",role = c("aut", "cre"),
        comment = c(ORCID = "0000-0001-8416-2354")),
    person("Mahmood", "Kharrati-Kopaei", email = "mkharati@shirazu.ac.ir", role = "aut",
        comment = c(ORCID = "0000-0001-5555-253X")),
    person("Seyed Morteza", "Najibi", email = "mor.najibi@gmail.com", role = "aut")
    )
Maintainer: Hossein Haghbin <haghbin@pgu.ac.ir>
Description: There are several non-functional-form-based interaction tests for testing interaction in unreplicated two-way layouts. However, no single test can detect all patterns of possible interaction and the tests are sensitive to a particular pattern of interaction. This package combines six non-functional-form-based interaction tests for testing additivity. These six tests were proposed by Boik (1993) <doi:10.1080/02664769300000004>, Piepho (1994), Kharrati-Kopaei and Sadooghi-Alvandi (2007) <doi:10.1080/03610920701386851>, Franck et al. (2013) <doi:10.1016/j.csda.2013.05.002>, Malik et al. (2016) <doi:10.1080/03610918.2013.870196> and Kharrati-Kopaei and Miller (2016) <doi:10.1080/00949655.2015.1057821>. The p-values of these six tests are combined by Bonferroni, Sidak, Jacobi polynomial expansion, and the Gaussian copula methods to provide researchers with a testing approach which leverages many existing methods to detect disparate forms of non-additivity. This package is based on the following published paper: Shenavari and Kharrati-Kopaei (2018) "A Method for Testing Additivity in Unreplicated Two-Way Layouts Based on Combining Multiple Interaction Tests". In addition, several sentences in help files or descriptions were copied from that paper.
URL: https://github.com/haghbinh/combinIT
BugReports: https://github.com/haghbinh/combinIT/issues
License: GPL (>= 2)
Encoding: UTF-8
LazyData: TRUE
RoxygenNote: 7.3.2
Imports: Rcpp,mvtnorm
Suggests: MASS, Matrix, testthat (>= 3.0.0)
Config/testthat/edition: 3
LinkingTo: Rcpp, RcppArmadillo
Depends: R (>= 4.0),
NeedsCompilation: yes
Packaged: 2025-10-20 09:56:47 UTC; Haghbin
Author: Zahra Shenavari [aut],
  Hossein Haghbin [aut, cre] (ORCID:
    <https://orcid.org/0000-0001-8416-2354>),
  Mahmood Kharrati-Kopaei [aut] (ORCID:
    <https://orcid.org/0000-0001-5555-253X>),
  Seyed Morteza Najibi [aut]
Repository: CRAN
Date/Publication: 2025-10-20 14:30:07 UTC
Built: R 4.6.0; aarch64-apple-darwin23; 2026-04-25 17:46:19 UTC; unix
Archs: combinIT.so.dSYM
