multigrain: Optimise Graphical Approaches to Multiple Testing Procedures

Find the optimal graphical multiple testing procedure for confirmatory clinical trials that test several hypotheses across endpoints, doses, or subpopulations. Choose the graph maximising an explicit gain-function: a user-defined measure of trial success that scores each possible set of rejected hypotheses. Given simulated p-values, search over hypothesis weights and transition weights to maximise expected trial success. Conventional power criteria are recovered and the family-wise error rate is strongly controlled due to the search being confined to graphical procedures. Described in Spiers, Grayling, Wheeler, and Mander (2026) "Gain-function optimisation of graphical multiple testing procedures for confirmatory clinical trials" <doi:10.48550/arXiv.2609.19994>.

Version: 1.0.0
Depends: R (≥ 4.1.0)
Imports: cli, dplyr, GA, ggplot2, ggraph, glue, igraph, mvtnorm, nloptr, purrr, Rcpp, RcppParallel (≥ 5.1.10), rlang (≥ 1.2.0), stats, tibble, tidyr, utils, vctrs, withr
LinkingTo: Rcpp, RcppParallel
Suggests: gMCPLite, spelling, svglite, testthat (≥ 3.0.0), vdiffr
Published: 2026-10-18
DOI: 10.32614/CRAN.package.multigrain (may not be active yet)
Author: Alex Spiers ORCID iD [aut, cre], Dragoș Moldovan-Grünfeld [aut], GlaxoSmithKline Research & Development Limited [cph, fnd]
Maintainer: Alex Spiers <alex.d.spiers at gsk.com>
BugReports: https://github.com/GSK-Biostatistics/multigrain/issues
License: LGPL (≥ 3)
URL: https://github.com/GSK-Biostatistics/multigrain, https://gsk-biostatistics.github.io/multigrain/
NeedsCompilation: yes
SystemRequirements: GNU make
Language: en-GB
Materials: README, NEWS
CRAN checks: multigrain results

Documentation:

Reference manual: multigrain.html , multigrain.pdf

Downloads:

Package source: multigrain_1.0.0.tar.gz
Windows binaries: r-devel: not available, r-release: not available, r-oldrel: not available
macOS binaries: r-release (arm64): not available, r-oldrel (arm64): not available, r-release (x86_64): not available, r-oldrel (x86_64): not available

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