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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: 0.9.2
Depends: R (≥ 4.1.0)
Imports: stats, likelihood.model, generics, numDeriv
Suggests: knitr, rmarkdown, testthat (≥ 3.0.0), algebraic.mle, algebraic.dist
Published: 2026-03-08
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_0.9.2.tar.gz
Windows binaries: r-devel: maskedcauses_0.9.2.zip, r-release: not available, r-oldrel: maskedcauses_0.9.2.zip
macOS binaries: r-release (arm64): maskedcauses_0.9.2.tgz, r-oldrel (arm64): maskedcauses_0.9.2.tgz, r-release (x86_64): not available, r-oldrel (x86_64): not available

Linking:

Please use the canonical form https://CRAN.R-project.org/package=maskedcauses to link to this page.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
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