Tools to Support the Sheffield Elicitation Framework R package SHELF version 1.13.0 Implements various methods for eliciting a probability distribution for a single parameter from an expert or a group of experts. The expert provides a small number of probability judgements, corresponding to points on his or her cumulative distribution function. A range of parametric distributions can then be fitted and displayed, with feedback provided in the form of fitted probabilities and percentiles. For multiple experts, a weighted linear pool can be calculated. Also includes functions for eliciting beliefs about population distributions; eliciting multivariate distributions using a Gaussian copula; eliciting a Dirichlet distribution; eliciting distributions for variance parameters in a random effects meta-analysis model; survival extrapolation. R Shiny apps for most of the methods are included. Software Depends: R (>= 3.5.0) Imports: flexsurv, ggExtra, ggplot2, ggrepel, ggridges, graphics, grDevices, grid, Hmisc, rmarkdown, scales, shiny, shinyMatrix, sn, stats, survival, survminer, tidyr, utils Suggests: GGally, knitr, testthat, vdiffr Jeremy Oakley <j.oakley@sheffield.ac.uk> Comprehensive R Archive Network (CRAN) Jeremy Oakley [aut, cre] GPL-2 GPL-3 2026-04-04 application/tgz https://CRAN.R-project.org/package=SHELF doi:10.32614/CRAN.package.SHELF