maskedcauses: Likelihood Models for Systems with Masked Component Cause of Failure

Maximum likelihood estimation for series systems where the component cause of failure is masked. Implements analytical log-likelihood, score, and Hessian functions for exponential, homogeneous Weibull, and heterogeneous Weibull component lifetimes under masked cause conditions (C1, C2, C3). Supports exact, right-censored, left-censored, and interval-censored observations via composable observation functors. Provides random data generation, model fitting, and Fisher information for asymptotic inference. See Lin, Loh, and Bai (1993) <doi:10.1109/24.257799> and Craiu and Reiser (2006) <doi:10.1111/j.1541-0420.2005.00498.x>.

Version: 0.9.3
Depends: R (≥ 4.1.0)
Imports: stats, likelihood.model, generics, numDeriv
Suggests: knitr, rmarkdown, testthat (≥ 3.0.0), algebraic.mle, algebraic.dist
Published: 2026-03-17
DOI: 10.32614/CRAN.package.maskedcauses
Author: Alexander Towell ORCID iD [aut, cre]
Maintainer: Alexander Towell <lex at metafunctor.com>
BugReports: https://github.com/queelius/maskedcauses/issues
License: GPL (≥ 3)
URL: https://queelius.github.io/maskedcauses/
NeedsCompilation: no
Language: en-US
Materials: README, NEWS
CRAN checks: maskedcauses results

Documentation:

Reference manual: maskedcauses.html , maskedcauses.pdf
Vignettes: Censoring Types in Series System Masked Data (source, R code)
Package Ecosystem: Reliability Analysis with Masked Failure Data (source)
Masked Data Likelihood Model: Components with Exponentially Distributed Lifetimes Arranged In Series Configuration (source, R code)
A Likelihood Framework for Masked Series Systems (source, R code)
Model Selection for Masked Series Systems via Likelihood Ratio Tests (source, R code)
Homogeneous Weibull Series Systems: Shared Shape Parameter (source, R code)
Heterogeneous Weibull Series Systems: Flexible Hazard Shapes (source, R code)

Downloads:

Package source: maskedcauses_0.9.3.tar.gz
Windows binaries: r-devel: maskedcauses_0.9.3.zip, r-release: maskedcauses_0.9.3.zip, r-oldrel: maskedcauses_0.9.3.zip
macOS binaries: r-release (arm64): maskedcauses_0.9.3.tgz, r-oldrel (arm64): maskedcauses_0.9.3.tgz, r-release (x86_64): maskedcauses_0.9.3.tgz, r-oldrel (x86_64): maskedcauses_0.9.3.tgz
Old sources: maskedcauses archive

Reverse dependencies:

Reverse imports: maskedhaz

Linking:

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