Package: hlmLab
Type: Package
Title: Hierarchical Linear Modeling with Visualization and
        Decomposition
Version: 0.2.0.9000
Authors@R: 
    person("Subir", "Hait", email = "haitsubi@msu.edu",
           role = c("aut", "cre"),
           comment = c(ORCID = "0009-0004-9871-9677"))
Description: Provides functions for visualization and decomposition in
        hierarchical linear models (HLM) for applications in education,
        psychology, and the social sciences. Includes variance
        decomposition for two-level and three-level data structures
        following Snijders and Bosker (2012, ISBN:9781849202015),
        intraclass correlation (ICC) estimation and design effect
        computation as described in Shrout and Fleiss (1979)
        <doi:10.1037/0033-2909.86.2.420>, and contextual effect
        decomposition via the Mundlak (1978) <doi:10.2307/1913646>
        specification distinguishing within- and between-cluster
        components, with the uncertainty of the contextual contrast
        obtained from the full fixed-effect covariance matrix. Teaching
        displays cover simulated intraclass correlations, partial
        pooling of cluster means, random-slope heterogeneity, and
        cross-level interaction with an observed Level-2 moderator,
        following Hofmann and Gavin (1998)
        <doi:10.1177/014920639802400504> and Hamaker and Muthen (2020)
        <doi:10.1037/met0000239>. Multilevel models are estimated using
        'lme4' (Bates et al., 2015 <doi:10.18637/jss.v067.i01>). An
        optional 'Shiny' application enables interactive exploration of
        model components and parameter variation. The implementation
        follows the multilevel modeling framework of Raudenbush and
        Bryk (2002, ISBN:9780761919049).
License: MIT + file LICENSE
Encoding: UTF-8
Language: en-US
Depends: R (>= 4.1.0)
Imports: dplyr, ggplot2 (>= 3.4.0), grDevices, grid, lme4, scales,
        stats
Suggests: shiny, spelling, testthat (>= 3.0.0)
Config/testthat/edition: 3
Roxygen: list(markdown = TRUE)
URL: https://github.com/subirhait/hlmLab
BugReports: https://github.com/subirhait/hlmLab/issues
Config/roxygen2/version: 8.0.0
Config/pak/sysreqs: cmake make
Repository: https://subirhait.r-universe.dev
Date/Publication: 2026-09-28 17:44:22 UTC
RemoteUrl: https://github.com/subirhait/hlmlab
RemoteRef: HEAD
RemoteSha: ff72875f981552fc8676f37c140de179dc83255c
NeedsCompilation: no
Packaged: 2026-09-28 22:20:30 UTC; root
Author: Subir Hait [aut, cre] (ORCID: <https://orcid.org/0009-0004-9871-9677>)
Maintainer: Subir Hait <haitsubi@msu.edu>