Package: PTSDdiag Type: Package Title: Optimize PTSD Diagnostic Criteria Version: 0.1.0 Authors@R: c( person( "Laura", "Weidmann", comment = c(ORCID = "0009-0006-5509-6961"), role = c("aut") ), person( "Tobias R.", "Spiller", email = "tobias.spiller@access.uzh.ch", comment = c(ORCID = "0000-0002-0107-0743"), role = c("aut", "cre") ), person( "Flavio A.", "Schüepp", comment = c(ORCID = "0000-0002-0750-3888"), role = c("aut") ) ) Description: Provides tools for analyzing and optimizing PTSD (Post-Traumatic Stress Disorder) diagnostic criteria using PCL-5 (PTSD Checklist for DSM-5) data. Functions identify optimal subsets of PCL-5 items that maintain diagnostic accuracy while reducing assessment burden. Includes tools for both hierarchical (cluster-based) and non-hierarchical symptom combinations, calculation of diagnostic metrics, and comparison with standard DSM-5 criteria. Model validation is conducted using holdout and cross-validation methods to assess robustness and generalizability of the results. For more details see Weidmann et al. (2025) . License: MIT + file LICENSE Encoding: UTF-8 LazyData: true RoxygenNote: 7.3.1 Imports: dplyr, magrittr, rlang, stats, utils, modelr Depends: R (>= 3.5.0) Suggests: DT, knitr, lattice, psych, rmarkdown, testthat (>= 3.0.0) VignetteBuilder: knitr Config/testthat/edition: 3 URL: https://github.com/WeidmannL/PTSDdiag BugReports: https://github.com/WeidmannL/PTSDdiag/issues Config/pak/sysreqs: libicu-dev Repository: https://weidmannl.r-universe.dev Date/Publication: 2026-02-18 09:47:05 UTC RemoteUrl: https://github.com/weidmannl/ptsddiag RemoteRef: HEAD RemoteSha: 249808c5cbbb18e013e92a01687c239594409b76 NeedsCompilation: no Packaged: 2026-06-18 08:04:14 UTC; root Author: Laura Weidmann [aut] (ORCID: ), Tobias R. Spiller [aut, cre] (ORCID: ), Flavio A. Schüepp [aut] (ORCID: ) Maintainer: Tobias R. Spiller