R Observatory: Metrics for ptw version 1.9-17

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

ptw

1.9-17Package record

Parametric Time Warping

5packages depend

14.2Kdownloads / year

20.2%test coverage

13/13flavors OK

Overview

About

Maintained by Ron WehrensCRAN page ↗GitHub ↗Issues ↗

Parametric Time Warping aligns patterns, i.e., it aims to put corresponding features at the same locations. The algorithm searches for an optimal polynomial describing the warping. It is possible to align one sample to a reference, several samples to the same reference, or several samples to several references. One can choose between calculating individual warpings, or one global warping for a set of samples and one reference. Two optimization criteria are implemented: RMS (Root Mean Square error) and WCC (Weighted Cross Correlation). Both warping of peak profiles and of peak lists are supported. A vignette for the latter is contained in the inst/doc directory of the source package - the vignette source can be found on the package github site. See `citation("ptw")` for more details.

Install

R (CRAN)pak (dev)Ubuntu (r2u)Fedora (COPR)openSUSE (OBS)

install.packages("ptw", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

if (!requireNamespace("pak", quietly = TRUE))
  install.packages("pak", repos = "https://cloud.r-project.org/")
pak::pak("rwehrens/ptw")

Development version from rwehrens/ptw. Installs pak first if it is not already available.

Release

# enable cranapt (r2u) if it is not already set up, then install
grep -rqs r2u.stat.illinois.edu /etc/apt/sources.list /etc/apt/sources.list.d/ \
  || curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash
sudo apt install -y r-cran-ptw

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled. We list this channel from recorded r2u download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

bspm (used by r2u) also needs make: sudo apt install make

# enable the iucar/cran COPR if it is not already present, then install
ls /etc/yum.repos.d/*iucar*cran*.repo >/dev/null 2>&1 \
  || sudo dnf copr enable -y iucar/cran
sudo dnf install -y R-CRAN-ptw

RPMs from the iucar/cran COPR, rebuilt from CRAN.

For install.packages() integration in R, also: sudo dnf install R-CoprManager

# add the autoCRAN OBS repo (Tumbleweed) if it is missing, then install
zypper -q lr | grep -qi autoCRAN \
  || sudo zypper addrepo https://download.opensuse.org/repositories/devel:/languages:/R:/autoCRAN/openSUSE_Tumbleweed/devel:languages:R:autoCRAN.repo
sudo zypper install -y R-ptw

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed). We list this channel from recorded autoCRAN download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

Health

CRAN checks

13OK

CRAN check page ↗

Slowest check: 2.4 min · r-devel-windows-x86_64

Status changes

OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.9-17

READMENoVignettesNoNEWSYes · 100% structuredCitation fileYes · cites a publicationWebsitenot declared in DESCRIPTION

Help pages: 22 (1 internal)includes a package overview page
Examples that run: 90%18 run in a plain check · 2 never run
Exported functions with examples: 100%
Documented parameters: 92%
Return-value docs: 94%
Help pages citing references: 73%

Also includes 3 demo scripts (run with demo())

How these are measured

Downloads

14.2K

CRAN downloads in the past year

Rank #3,627 · ~39/day · ~1.2K/mo

Releases R versions

Daily download trend is not available in this view yet.

1.1K30 days

2.8K90 days

14.2K1 year

Compare downloads with other packages →

Also on2.5K r2u3 autocran6.1K conda_forge254 bioconda3.9K c2d4u

How downloads are counted

Repository

rwehrens/ptw ↗Account: rwehrens

8Stars

5Forks

5Open issues

0Open PRs

0Releases

71Commits

4Commit identities

71 commits · Last activity 2026-01-19

Responsiveness

How these are sampled

PRs merged (all time): 100%
Median days to close, 50 most recently updated closed issues: not measured
Median days to close, 50 most recently updated closed PRs: 0

Stars over time

2023-03-06 · 82026-07-07 · 8

How these are measured

PracticesBeta

1 development-tooling and community-health practice detected across 1 family in the upstream repository

Checks run against github.com/rwehrens/ptw on 2026-10-21.

Continuous integration (1)

Travis CI (config file)

How this is detected·Detection ruleset v4 (2026-10-20)

Dependencies

Declared dependencies

1 external dependency (excludes base and recommended)

Installing ptw adds 3 packages (3 with compiled code, 3.1 MB of source tarballs). Heaviest: Rcpp 1.8 MB, RcppArmadillo 1.0 MB, RcppDE 284 KB.

Depends (0)

none

Imports (4)

RcppDEgraphicsgrDevicesstats

LinkingTo (0)

none

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

5direct

3indirect

Depends 1 · Imports 4

Depends, Imports or LinkingTo, most downloaded first

spant chipPCR Rnmr1D gcxgclab RGCxGC

How these are counted

Code & Tests

Datasets

People & History

People (5)

Ron Wehrens

Author, Maintainer since 1.9-10 (2015)

Author

Author

Contributor

Contributor

Previously maintained by Tom Bloemberg (1.0-0 to 1.0-7).

Listed in earlier versions (1)

The R Development Core Team

no longer listed · 1.0-4 to 1.0-7

Releases (15)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
1.9-17Latest
record
2026-01-22 · current release · diff ↗
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
1.9-16
record
2022-01-19 · diff ↗
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
1.9-15
record
2019-11-26 · diff ↗
R
R 3.6.0 released · 2019-04-26
1.9-13
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2018-05-26 · diff ↗
R
R 3.5.0 released · 2018-04-23
R
R 3.4.0 released · 2017-04-21
1.9-12
record
2017-03-06 · diff ↗
R
R 3.3.0 released · 2016-05-03

Show 19 earlier eventsHide 19 earlier events

1.9-11
record
2015-08-21 · diff ↗
1.9-10
record
2015-07-01 · diff ↗ ·
removed 1 export
pattern:.

added 21 exports
ptw, baseline.corr, bestref, coda, padzeros, ptwgrid, select.traces, stptw, whit1, whit2, calc.multicoef, calc.zerocoef, difsm, wcc, wac, wcc.st, wac.st, asysm, warp.time, pktab2mzchannel, mzchannel2pktab
R
R 3.2.0 released · 2015-04-16
R
R 3.1.0 released · 2014-04-10
1.0-7
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2014-03-30 · diff ↗
1.0-6
record
2013-11-19 · diff ↗
R
R 3.0.0 released · 2013-04-03
1.0-5
record
2013-01-09 · diff ↗
1.0-4
record
2012-08-08 · diff ↗
1.0-3
record
2012-07-26 · diff ↗
1.0-2
record
2012-06-19 · diff ↗ ·
added 1 export
pattern:.
R
R 2.15.0 released · 2012-03-30
R
R 2.14.0 released · 2011-10-31
R
R 2.13.0 released · 2011-04-13
1.0-1
record
2010-11-17 · diff ↗
R
R 2.12.0 released · 2010-10-15
R
R 2.11.0 released · 2010-04-22
1.0-0
record
2009-10-27
R
R 2.10.0 released · 2009-10-26

Package metadata

First published: 2009-10-27
Total releases: 15 / 17 yrs
License: GPL (>= 2) OSI
Bundled data: 2.5 MB / 3 files
Download size: 4.0 MB

Appears in task views

Time Series Analysis

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("ptw")

The package provides a citation file that builds its entry when R runs it. Run citation() to see it.

Cite the R Observatory

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

Format

APA

Balamuta, J. J. (2026). R Observatory: Metrics for ptw version 1.9-17 [Data set]. HJJB, LLC. Data release v2026-10-23. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-23, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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