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survlab: Survival Model-Based Imputation for Laboratory Non-Detect Data

Implements survival-model-based imputation for censored laboratory measurements, including Tobit-type models with several distribution options. Suitable for data with values below detection or quantification limits, the package identifies the best-fitting distribution and produces realistic imputations that respect the censoring thresholds.

Version: 0.1.0
Depends: R (≥ 4.1.0)
Imports: data.table (≥ 1.17.0), stats, survival (≥ 3.0.0), truncnorm (≥ 1.0.0)
Suggests: ggplot2, knitr, rmarkdown, testthat (≥ 3.0.0)
Published: 2025-12-11
DOI: 10.32614/CRAN.package.survlab
Author: Luís Pereira ORCID iD [aut, cre], Paulo Infante ORCID iD [aut], Teresa Ferreira ORCID iD [ths], Paulo Quaresma ORCID iD [ths]
Maintainer: Luís Pereira <d57177 at alunos.uevora.pt>
License: MIT + file LICENSE
URL: https://lpereira-ue.github.io/survlab/, https://github.com/lpereira-ue/survlab
NeedsCompilation: no
Language: en-US
Citation: survlab citation info
Materials: README, NEWS
CRAN checks: survlab results

Documentation:

Reference manual: survlab.html , survlab.pdf
Vignettes: Survival Model-Based Imputation for Laboratory Non-Detect Data (source, R code)

Downloads:

Package source: survlab_0.1.0.tar.gz
Windows binaries: r-devel: survlab_0.1.0.zip, r-release: survlab_0.1.0.zip, r-oldrel: survlab_0.1.0.zip
macOS binaries: r-release (arm64): survlab_0.1.0.tgz, r-oldrel (arm64): survlab_0.1.0.tgz, r-release (x86_64): survlab_0.1.0.tgz, r-oldrel (x86_64): survlab_0.1.0.tgz

Linking:

Please use the canonical form https://CRAN.R-project.org/package=survlab 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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