Package: MixFrac Type: Package Title: Fractional Factorial Designs with Alias and Trend-Free Analysis Version: 1.0 Authors@R: c( person( given = "Sukanta", family = "Dash", email = "sukanta.iasri@gmail.com", role = c("aut", "cre") )) Description: Constructs mixed-level and regular fractional factorial designs using coordinate-exchange optimization and automatic generator search. Design quality is evaluated with J2 and balance (H-hat) criteria, alias structures are computed via correlation-based chaining, and deterministic trend-free run orders can be produced following Coster (1993) . Mixed-level design construction follows the NONBPA approach of Pantoja-Pacheco et al. (2021) . Regular fraction identification follows Guo, Simpson and Pignatiello (2007) . Alias structure computation follows Rios-Lira et al.(2021) . License: GPL-3 Encoding: UTF-8 RoxygenNote: 7.3.3 Imports: stats, utils Suggests: knitr, rmarkdown, testthat (>= 3.0.0) VignetteBuilder: knitr Config/testthat/edition: 3 NeedsCompilation: no Packaged: 2026-07-11 07:35:03 UTC; root Author: Sukanta Dash [aut, cre] Maintainer: Sukanta Dash Repository: https://sukantaiasri.r-universe.dev Date/Publication: 2025-12-12 21:20:14 UTC RemoteUrl: https://github.com/cran/MixFrac RemoteRef: HEAD RemoteSha: 6238dbeb672ce2a04a8d469220f33358dc40adaa