Package: CORAtool
Type: Package
Title: Combinational Regularity Analysis
Version: 0.1.2
Authors@R: c(
    person("Young", "Chan", email = "youngchanresearcher@gmail.com",
           role = c("aut", "cre", "cph"),
           comment = "Author of the R implementation"),
    person("Zuzana", "Sebechlebská", role = "cph",
           comment = "Copyright holder of the original Python implementation"),
    person("Lusine", "Mkrtchyan", role = "cph",
           comment = "Copyright holder of the original Python implementation"),
    person("Alrik", "Thiem", role = "cph",
           comment = "Copyright holder of the original Python implementation")
    )
Description: Searches configurational data for causes that are each an
        insufficient but non-redundant part of an unnecessary but
        sufficient (INUS) condition for their effect, so that
        cause-effect relations are marked by conjunctivity and
        disjunctivity. The method, Combinational Regularity Analysis
        (CORA), borrows its Boolean minimisation algorithms from
        switching circuit analysis. Truth tables are minimised either
        with the classical Quine-McCluskey algorithm over positive and
        don't care terms or with McCluskey's modified algorithm over
        positive and negative terms, and the resulting prime implicant
        charts are solved with Petrick's method. Multi-value conditions
        and structures with simple as well as complex effects are
        supported, together with a configurational data-mining search
        and two-level logic diagrams. The package is an R port of the
        'Python' packages 'CORA' and 'LOGIGRAM' described in
        Sebechlebská, Mkrtchyan and Thiem (2023)
        <doi:10.21105/joss.05019>; it computes in plain R and requires
        no 'Python' installation. It is an independent implementation
        and is not endorsed by the authors of the original packages.
License: GPL (>= 3)
Encoding: UTF-8
LazyData: true
Depends: R (>= 3.5.0)
Imports: graphics, stats, utils
Suggests: testthat (>= 3.0.0), reticulate, knitr, rmarkdown
VignetteBuilder: knitr
Config/testthat/edition: 3
URL: https://github.com/youngchanresearcher/CORAtool
BugReports: https://github.com/youngchanresearcher/CORAtool/issues
NeedsCompilation: no
Roxygen: list(markdown = TRUE)
RoxygenNote: 7.3.1
Repository: https://youngchanresearcher.r-universe.dev
Date/Publication: 2026-09-25 20:13:02 UTC
RemoteUrl: https://github.com/youngchanresearcher/coratool
RemoteRef: HEAD
RemoteSha: 43a9d056e83d0c01356a8cab345bab3d87ba6733
Packaged: 2026-10-07 09:19:41 UTC; root
Author: Young Chan [aut, cre, cph] (Author of the R implementation),
  Zuzana Sebechlebská [cph] (Copyright holder of the original Python
    implementation),
  Lusine Mkrtchyan [cph] (Copyright holder of the original Python
    implementation),
  Alrik Thiem [cph] (Copyright holder of the original Python
    implementation)
Maintainer: Young Chan <youngchanresearcher@gmail.com>