Package: exametrika Type: Package Title: Test Theory Analysis and Biclustering Version: 1.15.0 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/, https://github.com/kosugitti/exametrika BugReports: https://github.com/kosugitti/exametrika/issues Roxygen: list(markdown = TRUE) RoxygenNote: 7.3.3 Suggests: knitr, rmarkdown, testthat (>= 3.0.0) VignetteBuilder: knitr Config/testthat/edition: 3 Depends: R (>= 4.1.0) Imports: mvtnorm, igraph, Rcpp (>= 1.0.7) LinkingTo: Rcpp Config/pak/sysreqs: libglpk-dev libxml2-dev Repository: https://kosugitti.r-universe.dev Date/Publication: 2026-07-03 01:04:12 UTC RemoteUrl: https://github.com/kosugitti/exametrika RemoteRef: HEAD RemoteSha: f8bc4ea57f47172a88c356eb7cc5b92a023ad93d NeedsCompilation: yes Packaged: 2026-07-03 03:03:26 UTC; root Author: Koji Kosugi [aut, cre] (ORCID: ) Maintainer: Koji Kosugi