degradr: Estimating Remaining Useful Life with Linear Mixed EffectsModels
Provides tools for estimating the Remaining Useful Life (RUL) of degrading systems using linear mixed-effects models and creating a health index. It supports both univariate and multivariate degradation signals. For multivariate inputs, the signals are merged into a univariate health index prior to modeling. Linear and exponential degradation trajectories are supported (the latter using a log transformation). Remaining Useful Life (RUL) distributions are estimated using Bayesian updating for new units, enabling on-site predictive maintenance. Based on the methodology of Liu and Huang (2016) <doi:10.1109/TASE.2014.2349733>.
| Version: | 1.0.1 |
| Depends: | R (≥ 4.5) |
| Imports: | dplyr,nlme,quadprog,ggplot2 |
| Suggests: | testthat (≥ 3.0.0) |
| Published: | 2025-10-01 |
| DOI: | 10.32614/CRAN.package.degradr |
| Author: | Pedro Abraham Montoya Calzada [aut, cre, cph], Rogelio Salinas Gutiérrez [aut, cph], Silvia Rodríguez-Narciso [aut, cph], Netzahualcóyotl Castañeda-Leyva [aut, cph] |
| Maintainer: | Pedro Abraham Montoya Calzada <pedroabraham.montoya at gmail.com> |
| License: | GPL-3 |
| NeedsCompilation: | no |
| CRAN checks: | degradr results |
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