A Bayesian factor-analytic framework for Q methodology. Fits a low-rank factor model to Q-sort data with a Student-t likelihood and a hierarchical normal prior on loadings, samples the posterior with Stan, resolves rotational ambiguity via the MatchAlign post-processing of Poworoznek et al. (2025) <doi:10.1214/25-BA1544>, and returns posterior summaries including credible intervals for loadings and factor scores, probabilistic dominant-factor membership, distinguishing and consensus statements, and PSIS-LOO-based factor enumeration following Vehtari et al. (2017) <doi:10.1007/s11222-016-9696-4> with the Sivula et al. (2025) <doi:10.1214/25-BA1569> parsimony rule.
| Version: | 0.1.0 |
| Depends: | R (≥ 4.1.0) |
| Imports: | stats, utils, tools, parallel, rstantools (≥ 2.3.0) |
| Suggests: | cmdstanr (≥ 0.8.0), rstan (≥ 2.32.0), loo (≥ 2.7.0), GPArotation (≥ 2024.3-1), lpSolve, readxl (≥ 1.4.0), jsonlite (≥ 1.8.0), posterior (≥ 1.5.0), ggplot2 (≥ 3.4.0), ggdist (≥ 3.3.0), ggridges (≥ 0.5.0), scales (≥ 1.2.0), knitr (≥ 1.40), rmarkdown (≥ 2.20), testthat (≥ 3.0.0), vdiffr (≥ 1.0.0) |
| Published: | 2026-06-17 |
| DOI: | 10.32614/CRAN.package.bayesqm |
| Author: | Raymond Dacosta Azadda [aut, cre], AK-ACE Team [aut], Karsten Hueffer [aut], Taa'aii Peter [aut], Stacy Rasmus [aut] |
| Maintainer: | Raymond Dacosta Azadda <rdazadda at alaska.edu> |
| BugReports: | https://github.com/rdazadda/bayesqm/issues |
| License: | GPL (≥ 3) |
| URL: | https://github.com/rdazadda/bayesqm, https://rdazadda.github.io/bayesqm/ |
| NeedsCompilation: | no |
| Additional_repositories: | https://stan-dev.r-universe.dev |
| Language: | en-US |
| Citation: | bayesqm citation info |
| Materials: | README |
| CRAN checks: | bayesqm results |
| Reference manual: | bayesqm.html , bayesqm.pdf |
| Vignettes: |
Getting started with bayesqm (source, R code) |
| Package source: | bayesqm_0.1.0.tar.gz |
| Windows binaries: | r-devel: bayesqm_0.1.0.zip, r-release: bayesqm_0.1.0.zip, r-oldrel: bayesqm_0.1.0.zip |
| macOS binaries: | r-release (arm64): bayesqm_0.1.0.tgz, r-oldrel (arm64): bayesqm_0.1.0.tgz, r-release (x86_64): bayesqm_0.1.0.tgz, r-oldrel (x86_64): bayesqm_0.1.0.tgz |
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