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Provides threshold sweep methods for Qualitative Comparative Analysis ('QCA'). Implements Condition Threshold Sweep-Single (CTS-S), Condition Threshold Sweep-Multiple (CTS-M), Outcome Threshold Sweep (OTS), and Dual Threshold Sweep (DTS) for systematic exploration of threshold calibration effects on crisp-set 'QCA' results. These methods extend traditional robustness approaches by treating threshold variation as an exploratory tool for discovering causal structures. Also provides Fiss (2011) <doi:10.5465/amj.2011.60263120> core/peripheral condition classification via compute_fiss_core() and generate_fiss_chart(), enabling four-symbol configuration charts that distinguish core conditions (present in both parsimonious and intermediate solutions) from peripheral conditions (intermediate only). Built on top of the 'QCA' package by Dusa (2019) <doi:10.1007/978-3-319-75668-4>, with function arguments following 'QCA' conventions. Based on set-theoretic methods by Ragin (2008) <doi:10.7208/chicago/9780226702797.001.0001> and established robustness protocols by Rubinson et al. (2019) <doi:10.1177/00491241211036158>. This package supersedes 'TSQCA'; see the NEWS file for migration guidance.
| Version: | 2.0.0 |
| Depends: | R (≥ 4.0) |
| Imports: | QCA |
| Suggests: | knitr, rmarkdown, testthat (≥ 3.0.0) |
| Published: | 2026-05-30 |
| DOI: | 10.32614/CRAN.package.ThSQCA |
| Author: | Yuki Toyoda [aut, cre], Japan Society for the Promotion of Science [fnd] (KAKENHI Grant Number JP20K01998) |
| Maintainer: | Yuki Toyoda <yuki.toyoda.ds at hosei.ac.jp> |
| BugReports: | https://github.com/im-research-yt/ThSQCA/issues |
| License: | MIT + file LICENSE |
| URL: | https://github.com/im-research-yt/ThSQCA, https://doi.org/10.5281/zenodo.17899390 |
| NeedsCompilation: | no |
| Citation: | ThSQCA citation info |
| Materials: | README, NEWS |
| CRAN checks: | ThSQCA results |
| Reference manual: | ThSQCA.html , ThSQCA.pdf |
| Vignettes: |
ThSQCA Reproducible Code (English) (source, R code) ThSQCA Tutorial (English) (source, R code) |
| Package source: | ThSQCA_2.0.0.tar.gz |
| Windows binaries: | r-devel: ThSQCA_2.0.0.zip, r-release: not available, r-oldrel: ThSQCA_2.0.0.zip |
| macOS binaries: | r-release (arm64): ThSQCA_2.0.0.tgz, r-oldrel (arm64): ThSQCA_2.0.0.tgz, r-release (x86_64): ThSQCA_2.0.0.tgz, r-oldrel (x86_64): ThSQCA_2.0.0.tgz |
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