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maskedcauses 0.10.0

Soft deprecation: exp_series functional API

The exponential-series convenience functions (dexp_series, pexp_series, qexp_series, rexp_series, hazard_exp_series, surv.exp_series, mean.exp_series) are now thin wrappers that derive the aggregate exponential rate from dist.structure::exp_series(), the canonical constructor for series-of-exponential distributions. The base R dexp/pexp/qexp/rexp functions are used for the actual computation to avoid S3 dispatch ambiguity (both packages register methods named like surv.exp_series and mean.exp_series but on different underlying object shapes).

The functions remain in maskedcauses for backwards compatibility, but new code should construct an explicit dist.structure object:

sys <- dist.structure::exp_series(rates)
algebraic.dist::surv(sys)(t)
algebraic.dist::cdf(sys)(t)
algebraic.dist::sampler(sys)(n)
mean(sys)

The dist.structure form composes with the wider dist.structure ecosystem (importance measures, system signature, structural importance, dual, compositional operations) that the legacy functional API does not expose.

Internal changes

• Adds dist.structure and algebraic.dist to Imports (algebraic.dist was previously in Suggests).
• No public API removals. All existing test cases pass.

maskedcauses 0.9.2

• Save and restore graphical parameters (par()) in all vignettes, as requested by CRAN reviewer.

maskedcauses 0.9.1

• Fix Unicode characters in roxygen documentation that broke LaTeX PDF manual generation on Windows (replaced with \eqn{} markup).
• Fix unescaped braces in Rd math notation.

maskedcauses 0.9.0

• Initial CRAN submission.
• Likelihood models for exponential, homogeneous Weibull, and heterogeneous Weibull series systems with masked component cause of failure.
• Composable observation functors for right, left, interval, and mixed censoring schemes.
• Analytical log-likelihood, score, and Hessian for exponential model.
• Closed-form left/interval censoring for homogeneous Weibull.
• Numerical integration for heterogeneous Weibull left/interval censoring.

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.