projectLSA: Latent Structure Analysis Toolkit

Provides an interactive Shiny-based toolkit for conducting latent structure analyses, including Latent Profile Analysis (LPA), Latent Class Analysis (LCA), Latent Trait Analysis (LTA/IRT), Exploratory Factor Analysis (EFA), Confirmatory Factor Analysis (CFA), and Structural Equation Modeling (SEM). The implementation is grounded in established methodological frameworks: LPA is supported through 'tidyLPA' (Rosenberg et al., 2018) <doi:10.21105/joss.00978>, LCA through 'poLCA' (Linzer & Lewis, 2011), LTA/IRT via 'mirt' (Chalmers, 2012) <doi:10.18637/jss.v048.i06>, and EFA via 'psych' (Revelle, 2025). SEM and CFA functionalities build upon the 'lavaan' framework (Rosseel, 2012) <doi:10.18637/jss.v048.i02>. Users can upload datasets or use built-in examples, fit models, compare fit indices, visualize results, and export outputs without programming.

Version:	0.0.3
Depends:	R (≥ 4.0.0)
Imports:	colourpicker, dplyr, DT, ggiraph, ggplot2, lavaan, mirt, plotly, poLCA, psych, purrr, readr, readxl, rlang, semPlot, semptools, semTools, shiny, shinyWidgets, stringr, tibble, tidyr, tidyLPA, viridisLite
Suggests:	knitr, pkgdown, rmarkdown
Published:	2025-12-10
DOI:	10.32614/CRAN.package.projectLSA
Author:	Hasan Djidu [aut, cre], Heri Retnawati [ctb], Samsul Hadi [ctb], Haryanto [ctb]
Maintainer:	Hasan Djidu <hasandjidu at gmail.com>
BugReports:	https://github.com/hasandjidu/projectLSA/issues
License:	MIT + file LICENSE
URL:	https://github.com/hasandjidu/projectLSA
NeedsCompilation:	no
Materials:	README, NEWS
CRAN checks:	projectLSA results

Documentation:

Reference manual:	projectLSA.html , projectLSA.pdf
Vignettes:	Introduction to projectLSA (source)

Downloads:

Package source:	projectLSA_0.0.3.tar.gz
Windows binaries:	r-devel: projectLSA_0.0.3.zip, r-release: projectLSA_0.0.3.zip, r-oldrel: not available
macOS binaries:	r-release (arm64): projectLSA_0.0.3.tgz, r-oldrel (arm64): projectLSA_0.0.3.tgz, r-release (x86_64): projectLSA_0.0.3.tgz, r-oldrel (x86_64): projectLSA_0.0.3.tgz

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