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xplus  

Positive and Unlabeled Learning from Unbalanced Cases and Sparse Structures
View on CRAN: Click here


Download and install xplus package within the R console
Install from CRAN:
install.packages("xplus")

Install from Github:
library("remotes")
install_github("cran/xplus")

Install by package version:
library("remotes")
install_version("xplus", "1.0.2")



Attach the package and use:
library("xplus")
Maintained by
Angel Robles
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2026-09-26
Latest Update: 2026-09-26
Description:
Provides PLUS-derived extensions for positive and unlabeled (PU) learning from unbalanced cases and sparse structures, based on Zhou et al. (2022) <doi:10.1371/journal.pcbi.1009956>. 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.
How to cite:
Angel Robles (2026). xplus: Positive and Unlabeled Learning from Unbalanced Cases and Sparse Structures. R package version 1.0.2, https://cran.r-project.org/web/packages/xplus. Accessed 24 Oct. 2026.
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