Package: ackwards
Title: Bass-Ackwards Hierarchical Structural Analysis
Version: 0.3.0
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
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
NeedsCompilation: no
Packaged: 2026-10-19 14:05:42 UTC; jmgirard
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>
Repository: CRAN
Date/Publication: 2026-10-19 14:40:02 UTC
Built: R 4.5.2; ; 2026-10-19 17:16:35 UTC; unix
