Package: exametrika
Type: Package
Title: Test Theory Analysis and Biclustering
Version: 1.8.1
Authors@R: 
    person("Koji Kosugi", , , "kosugitti@gmail.com", role = c("aut", "cre"),
           comment = c(ORCID = "0000-0001-5816-0099"))
Description: Implements comprehensive test data engineering methods as described in 
    Shojima (2022, ISBN:978-9811699856). Provides statistical techniques for 
    engineering and processing test data: Classical Test Theory (CTT) with 
    reliability coefficients for continuous ability assessment; Item Response 
    Theory (IRT) including Rasch, 2PL, and 3PL models with item/test information 
    functions; Latent Class Analysis (LCA) for nominal clustering; Latent Rank 
    Analysis (LRA) for ordinal clustering with automatic determination of cluster 
    numbers; Biclustering methods including infinite relational models for 
    simultaneous clustering of examinees and items without predefined cluster 
    numbers; and Bayesian Network Models (BNM) for visualizing inter-item 
    dependencies. Features local dependence analysis through LRA and biclustering, 
    parameter estimation, dimensionality assessment, and network structure 
    visualization for educational, psychological, and social science research.
License: MIT + file LICENSE
Language: en-US
Encoding: UTF-8
LazyData: true
BuildVignettes: true
URL: https://kosugitti.github.io/exametrika/
RoxygenNote: 7.3.3
Suggests: testthat (>= 3.0.0)
Config/testthat/edition: 3
Depends: R (>= 4.1.0)
Imports: mvtnorm, igraph, Rcpp (>= 1.0.7)
LinkingTo: Rcpp
NeedsCompilation: yes
Packaged: 2026-02-17 12:45:32 UTC; pythagoras
Author: Koji Kosugi [aut, cre] (ORCID: <https://orcid.org/0000-0001-5816-0099>)
Maintainer: Koji Kosugi <kosugitti@gmail.com>
Repository: CRAN
Date/Publication: 2026-02-17 13:10:02 UTC
Built: R 4.5.2; x86_64-w64-mingw32; 2026-03-06 12:50:51 UTC; windows
Archs: x64
