Package: xplus Title: Positive and Unlabeled Learning from Unbalanced Cases and Sparse Structures Version: 1.0.2 Authors@R: person("Angel", "Robles", , "a.l.robles.fernandez@gmail.com", role = c("aut", "cre"), comment = c(ORCID = "0000-0002-4674-4270")) Description: Provides PLUS-derived extensions for positive and unlabeled (PU) learning from unbalanced cases and sparse structures, based on Zhou et al. (2022) . Iteratively relabels unlabeled observations via penalised logistic regression and pseudo-label updates, then refits a final sparse model. Includes weighted bootstrap sampling, convergence diagnostics, prediction, coefficient extraction, and assessment utilities. License: GPL (>= 3) Encoding: UTF-8 Roxygen: list(markdown = TRUE) Depends: R (>= 4.1.0) LazyData: true Imports: glmnet (>= 4.1-8), Matrix, methods, stats, tibble, utils Suggests: covr, knitr, rmarkdown, survival, testthat (>= 3.0.0) Config/testthat/edition: 3 URL: https://github.com/alrobles/xplus, https://alrobles.github.io/xplus/ BugReports: https://github.com/alrobles/xplus/issues Config/roxygen2/version: 8.0.0 Repository: https://alrobles.r-universe.dev Date/Publication: 2026-09-27 05:09:01 UTC RemoteUrl: https://github.com/alrobles/xplus RemoteRef: HEAD RemoteSha: e9f545aa89552784f98694cb0fbfa6f4f65017ec NeedsCompilation: no Packaged: 2026-09-27 14:18:15 UTC; root Author: Angel Robles [aut, cre] (ORCID: ) Maintainer: Angel Robles