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ppweibull

Piecewise Lifetime Models

v1.0 · Feb 4, 2026 · GPL (>= 2)

Description

Provides functions for estimation and data generation for several piecewise lifetime distributions. The package implements the power piecewise Weibull model, which includes the piecewise Rayleigh and piecewise exponential models as special cases. See Feigl and Zelen (1965) <doi:10.2307/2528247> for methodological details.

Downloads

CRAN

219

Last 30 days

22252nd

494

Last 90 days

976

Last year

Trend: +88.8% (30d vs prior 30d)

r2u CRAN

0

Last 30 days

19

Last 90 days

31

Last year

Trend: -100% (30d vs prior 30d)

autoCRAN

0

Last 7 days

12

Last 30 days

0

All-time

autoCRAN-only: this name is served only by autoCRAN, so the count is exact.

CRAN Check Status

13 OK
Show all 13 flavors
Flavor Status
r-devel-linux-x86_64-debian-clang OK
r-devel-linux-x86_64-debian-gcc OK
r-devel-linux-x86_64-fedora-clang OK
r-devel-linux-x86_64-fedora-gcc OK
r-devel-windows-x86_64 OK
r-oldrel-macos-arm64 OK
r-oldrel-macos-x86_64 OK
r-oldrel-windows-x86_64 OK
r-patched-linux-x86_64 OK
r-release-linux-x86_64 OK
r-release-macos-arm64 OK
r-release-macos-x86_64 OK
r-release-windows-x86_64 OK

Check History

OK 13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE May 12, 2026
WARNING 12 OK · 0 NOTE · 1 WARNING · 0 ERROR · 0 FAILURE May 11, 2026
WARNING r-devel-linux-x86_64-debian-gcc

PDF version of manual

LaTeX errors when creating PDF version.
This typically indicates Rd problems.
LaTeX errors found:
OK 14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026

Code

Structure

Lines of code

1,213

Files

14

Compiled share

0%

Has compiled src

No

Language breakdown

R 786 (64.8%)Docs 427 (35.2%)

API

Exported functions

7

Internal functions

4

Recent export changes

v1.0+7 choose.pweibull, choose2.pweibull, dpweibull +4 more

Testing & CI

Has tests

No

Test-to-code ratio

0.00

testthat edition

CI present

No

CI type

[]

PR gated

No

Docs

Return-value doc rate

100%

\dontrun example ratio

66.7%

Roxygen coverage

100%

Has pkgdown

No

NEWS present

No

Health & Security signals

Informational signals; not verdicts.

on.exit coverage

Unsafe pattern score

0

Dep constraint coverage

0%

Secret pattern count

0

Bundled 3rd-party code

2 items

Portability & License

Min R version

4.0.0

System requirements

C++ standard

License

GPL (>= 2)

License flags

SPDX valid, OSI approved

History

Versions

1

First release

2026-02-04

Latest release

2026-02-04

Avg cadence

Cold removal rate

Dep drift

0

Per-file churn detail lives in the source pipeline: https://github.com/r-observatory/cran-code-metrics.

Dependency Network

Dependencies Reverse dependencies survival pracma segmented msm nloptr ppweibull

Version History

1 tracked
new 1.0 Mar 10, 2026

R Observatory began tracking this package on Mar 10, 2026; it first appeared on CRAN Feb 4, 2026. Releases before tracking aren’t shown.