Visualizing and Quantifying Decision Uncertainty R package DUToolkit version 1.0.2 A suite of tools to help modelers and decision-makers effectively interpret and communicate decision risk when evaluating multiple policy options. It uses model outputs from uncertainty analysis for baseline scenarios and policy alternatives to generate visual representations of uncertainty and quantitative measures for assessing associated risks. For more details see Wiggins and colleagues (2025) <doi:10.1371/journal.pone.0332522> and <https://dut.ihe.ca/>. Software Depends: R (>= 3.5.0) Imports: ggdist, ggplot2, ggtext, rlang, scales, stats Suggests: DT, knitr, rmarkdown, testthat (>= 3.0.0) Megan Wiggins <mwiggins@ihe.ca> Comprehensive R Archive Network (CRAN) Megan Wiggins [aut, cre] (ORCID: <https://orcid.org/0009-0007-0290-4950>), Marie Betsy Varughese [aut] (ORCID: <https://orcid.org/0000-0002-8432-6539>), Ellen Rafferty [aut] (ORCID: <https://orcid.org/0000-0001-9974-8016>), Sasha van Katwyk [aut] (ORCID: <https://orcid.org/0000-0003-3026-2063>), Christopher McCabe [aut] (ORCID: <https://orcid.org/0000-0001-5728-4129>), Jeff Round [aut] (ORCID: <https://orcid.org/0000-0002-3103-6984>), Erin Kirwin [aut] (ORCID: <https://orcid.org/0000-0001-6957-7236>), Institute of Health Economics [cph, aut], Canadian Network for Modelling Infectious Diseases [fnd] GPL (>= 2) 2025-10-06 application/tgz https://CRAN.R-project.org/package=DUToolkit doi:10.32614/CRAN.package.DUToolkit