Package: OptimalFactor
Type: Package
Title: Item Selection in Factor Analysis by Boosting and Specification
        Search
Version: 1.5.0
Date: 2026-10-05
Authors@R: 
    person("Jose", "Ventura-Leon",
           email = "jventuraleon@gmail.com",
           role = c("aut", "cre"),
           comment = c(ORCID = "0000-0003-2996-4244"))
Description: Provides an iterative optimization algorithm for
        exploratory and confirmatory factor analysis that follows a
        boosting approach inspired by machine learning. It uses a
        composite fit index whose weights adapt to the degrees of
        freedom and the sample size, following Kenny and McCoach (2003)
        <doi:10.1207/S15328007SEM1003_1> and Shi, Lee and
        Maydeu-Olivares (2019) <doi:10.1177/0013164418783530>. It
        detects and removes problematic items (Heywood cases,
        cross-loadings, low loadings) with greedy or global search
        strategies, checks interfactor correlations, and supports
        ordinal data with WLSMV estimation and several rotation
        methods. A heuristic specification search for confirmatory
        models (MacCallum, 1986 <doi:10.1037/0033-2909.100.1.107>)
        explores move, drop and covariance operations across seed
        configurations. It also evaluates the resampling stability of
        the item selection, the recovery of a known or theoretical
        structure, and offers an optional conceptual analysis of
        removed items through a large language model service.
License: GPL (>= 3)
URL: https://github.com/jventural/OptimalFactor,
        https://jventural.github.io/OptimalFactor/
BugReports: https://github.com/jventural/OptimalFactor/issues
Encoding: UTF-8
LazyData: true
Depends: R (>= 4.0.0)
Imports: lavaan, psych, dplyr, tidyr, ggplot2, stringr, parallel,
        stats, utils
Suggests: testthat (>= 3.0.0), httr, jsonlite, R.utils, knitr,
        rmarkdown, semTools
RoxygenNote: 7.3.2
VignetteBuilder: knitr
Config/testthat/edition: 3
NeedsCompilation: no
Packaged: 2026-10-24 21:06:42 UTC; root
Author: Jose Ventura-Leon [aut, cre] (ORCID:
        <https://orcid.org/0000-0003-2996-4244>)
Maintainer: Jose Ventura-Leon <jventuraleon@gmail.com>
Repository: https://cran.r-universe.dev
Date/Publication: 2026-10-24 16:30:08 UTC
RemoteUrl: https://github.com/cran/OptimalFactor
RemoteRef: HEAD
RemoteSha: 8bfdcbfe058a911eb08f1824e9003822c6a46038