Package: ackwards
Title: Bass-Ackwards Hierarchical Structural Analysis
Version: 0.2.0.9000
Authors@R: c(
    person("Jeffrey M.", "Girard", , "me@jmgirard.com", role = c("aut", "cre"),
           comment = c(ORCID = "0000-0002-7359-3746")),
    person("Miriam K.", "Forbes", role = "cph",
           comment = "Author of the bundled AMH correlation matrix (data/forbes2023.rda), CC-BY 4.0"))
Description: Implements Goldberg's (2006)
        <doi:10.1016/j.jrp.2006.01.001> bass-ackwards method and modern
        descendants for hierarchical structural analysis. Extracts
        solutions from 1 to k factors using principal component
        analysis (PCA), exploratory factor analysis (EFA), or
        exploratory structural equation modeling (ESEM) engines. It
        then describes the hierarchy through the correlations between
        the factor scores of different levels. It computes them with
        linear algebra from the scoring weights and the correlation
        matrix the fit uses, so they are exact for that matrix. Waller
        (2007) <doi:10.1016/j.jrp.2006.08.005> showed, for principal
        components, that these correlations follow from the correlation
        matrix alone. Includes the Forbes (2023)
        <doi:10.1037/met0000546> extension for redundancy pruning and
        all-levels cross-correlations.
License: MIT + file LICENSE
Encoding: UTF-8
Roxygen: list(markdown = TRUE)
Depends: R (>= 4.1.0)
Imports: cli, generics, psych, rlang, stats, utils
Suggests: covr, EFAtools, future, future.apply, ggplot2, GPArotation,
        gt, knitr, lavaan (>= 0.6-13), rmarkdown, testthat (>= 3.0.0)
LazyData: true
Config/testthat/edition: 3
Config/testthat/parallel: true
Config/testthat/start-first: suggest_k, boot_edges, oblique, esem,
        layout, missing, vignette-m24
VignetteBuilder: knitr
URL: https://jmgirard.github.io/ackwards/,
        https://github.com/jmgirard/ackwards
BugReports: https://github.com/jmgirard/ackwards/issues
Config/roxygen2/version: 8.1.0
Repository: https://jmgirard.r-universe.dev
Date/Publication: 2026-10-06 18:51:49 UTC
RemoteUrl: https://github.com/jmgirard/ackwards
RemoteRef: HEAD
RemoteSha: 51368d3c5ac1ffb8d1cbb00e53d053f92ae7f8ab
NeedsCompilation: no
Packaged: 2026-10-07 08:32:34 UTC; root
Author: Jeffrey M. Girard [aut, cre] (ORCID:
    <https://orcid.org/0000-0002-7359-3746>),
  Miriam K. Forbes [cph] (Author of the bundled AMH correlation matrix
    (data/forbes2023.rda), CC-BY 4.0)
Maintainer: Jeffrey M. Girard <me@jmgirard.com>