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Analysis of Accelerated Destructive Degradation Test Data

0packages depend
3.7Kdownloads / year
–test coverage
11/13flavors OK

Overview

About

Accelerated destructive degradation tests (ADDT) are often used to collect necessary data for assessing the long-term properties of polymeric materials. Based on the collected data, a thermal index (TI) is estimated. The TI can be useful for material rating and comparison. This package implements the traditional method based on the least-squares method, the parametric method based on maximum likelihood estimation, and the semiparametric method based on spline methods, and the corresponding methods for estimating TI for polymeric materials. The traditional approach is a two-step approach that is currently used in industrial standards, while the parametric method is widely used in the statistical literature. The semiparametric method is newly developed. Both the parametric and semiparametric approaches allow one to do statistical inference such as quantifying uncertainties in estimation, hypothesis testing, and predictions. Publicly available datasets are provided illustrations. More details can be found in Jin et al. (2017).

Install

Health

CRAN checks
2NOTE11OK
Check messages
NOTECRAN incoming feasibilityr-devel-linux-x86_64-debian-clang, r-devel-linux-x86_64-debian-gcc
Maintainer: ‘Yili Hong <yilihong@vt.edu>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: c(person(given = "Yili",
                      family = "Hong",
                      role = c("aut", "cre"),
                      email = "yilihong@vt.edu"),
               person(given = "Yimeng",
                      family = "Xie",
                      role = "aut"),
               person(given = "Zhongnan",
                      family = "Jin",
                      role = "aut"),
               person(given = "Caleb",
                      family = "King",
                      role = "aut"))
as necessary.

CRAN check page ↗

Slowest check: 36.1 min · r-release-windows-x86_64
Status changes
  • NOTE11 OK, 2 NOTENow
  • NOTE12 OK, 2 NOTE2026-03-13
  • WARNING11 OK, 2 NOTE, 1 WARNING2026-03-12
  • NOTE12 OK, 2 NOTE2026-03-10
Advisories

none known

Documentation

In release 2.0
READMENoVignettesNoNEWSNoCitation fileNoWebsitenot declared in DESCRIPTION
Help pages
11includes a package overview page
Examples that run
100%2 run in a plain check
Exported functions with examples
50%
Documented parameters
98%
Return-value docs
100%
Help pages citing references
36%

Downloads

3.7K
CRAN downloads in the past year
Rank #8,189 · ~10/day · ~309/mo
Daily download trend is not available in this view yet.
44430 days
1.1K90 days
3.7K1 year
Compare downloads with other packages →
Also on95 r2u13 autocran

Dependencies

Declared dependencies
1 external dependency (excludes base and recommended)

Installing ADDT adds 3 packages (3 with compiled code, 2.8 MB of source tarballs). Heaviest: Rcpp 1.8 MB, RcppArmadillo 1.0 MB, coneproj 33 KB.

Depends (3)
nlmeMatrixconeproj
Imports (0)
none
LinkingTo (0)
none
Suggests (0)
none
Enhances (0)
none
Reverse dependencies
0direct
0indirect

Nothing depends on this yet.

Datasets

People & History

People (from the free-text Author field) (4)

Maintainer since 1.0 (2014)

Releases (2)

Pick two releases to compare their code metrics.

  • R
    R 4.6.0 released · 2026-04-24
  • R
    R 4.5.0 released · 2025-04-11
  • R
    R 4.4.0 released · 2024-04-24
  • R
    R 4.3.0 released · 2023-04-21
  • R
    R 4.2.0 released · 2022-04-22
  • R
    R 4.1.0 released · 2021-05-18
  • R
    R 4.0.0 released · 2020-04-24
  • R
    R 3.6.0 released · 2019-04-26
  • R
    R 3.5.0 released · 2018-04-23
  • R
    R 3.4.0 released · 2017-04-21
  • 2.0Latest
    record
    2016-11-03 · current release · diff ↗
  • R
    R 3.3.0 released · 2016-05-03
  • R
    R 3.2.0 released · 2015-04-16
  • 1.0
    record
    2014-09-26
  • R
    R 3.1.0 released · 2014-04-10

Package metadata

First published
2014-09-26
Total releases
2 / 12 yrs
License
GPL-2 OSI
Bundled data
2.5 KB / 4 files
Download size
24 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("ADDT")

Cite the R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

APA

Balamuta, J. J. (2026). R Observatory: Metrics for ADDT version 2.0 [Data set]. HJJB, LLC. Data release v2026-10-21. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-21, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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