Package: sampsizeval Title: Sample Size for Validation of Risk Models with Binary Outcomes Version: 1.0.0.0 Authors@R: person(given = "Menelaos", family = "Pavlou", role = c("aut", "cre"), email = "m.pavlou@ucl.ac.uk", comment = c(ORCID = "0000-0003-1161-1440")) Description: Estimation of the required sample size to validate a risk model for binary outcomes, based on the sample size equations proposed by Pavlou et al. (2021) . For precision-based sample size calculations, the user is required to enter the anticipated values of the C-statistic and outcome prevalence, which can be obtained from a previous study. The user also needs to specify the required precision (standard error) for the C-statistic, the calibration slope and the calibration in the large. The calculations are valid under the assumption of marginal normality for the distribution of the linear predictor. License: MIT + file LICENSE Roxygen: list(markdown = TRUE) RoxygenNote: 7.1.1 Suggests: testthat (>= 3.0.0) Config/testthat/edition: 3 Imports: stats, sn, pracma, dplyr, plyr URL: https://github.com/mpavlou/sampsizeval BugReports: https://github.com/mpavlou/sampsizeval/issues Repository: https://mpavlou.r-universe.dev Date/Publication: 2024-06-27 08:51:32 UTC RemoteUrl: https://github.com/mpavlou/sampsizeval RemoteRef: HEAD RemoteSha: 158e5edbef21d5d5d57a018cbd02edf41996b7ce NeedsCompilation: no Packaged: 2026-10-12 09:47:26 UTC; root Author: Menelaos Pavlou [aut, cre] (ORCID: ) Maintainer: Menelaos Pavlou