R Observatory: Metrics for mixchar version 0.1.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

mixchar

0.1.0

Mixture Model for the Deconvolution of Thermal Decay Curves

0packages depend

2.6Kdownloads / year

–test coverage

13/13checks pass

Overview

About

Maintained by Saras WindeckerFirst published 2018-08-161 releasesCRAN page ↗GitHub ↗

Deconvolution of thermal decay curves allows you to quantify proportions of biomass components in plant litter. Thermal decay curves derived from thermogravimetric analysis (TGA) are imported, modified, and then modelled in a three- or four- part mixture model using the Fraser-Suzuki function. The output is estimates for weights of pseudo-components corresponding to hemicellulose, cellulose, and lignin. For more information see: Müller-Hagedorn, M. and Bockhorn, H. (2007) doi:10.1016/j.jaap.2006.12.008, Órfão, J. J. M. and Figueiredo, J. L. (2001) doi:10.1016/S0040-6031(01)00634-7, and Yang, H. and Yan, R. and Chen, H. and Zheng, C. and Lee, D. H. and Liang, D. T. (2006) doi:10.1021/ef0580117.

Install

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

install.packages("mixchar", 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("smwindecker/mixchar")

Development version from smwindecker/mixchar. 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-mixchar

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled.

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-mixchar

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-mixchar

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed).

Health

CRAN checks

13OK

Slowest check: 4.1 min · r-devel-windows-x86_64

Code health

None

Tests · ratio 0.00

not tracked

Coverage

100%

Documentation · exports

6

Dependencies · direct

Check history

OK2026-08-05
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-08-01
12 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
OK2026-06-09
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
WARNING2026-06-08
12 OK · 0 NOTE · 1 WARNING · 0 ERROR · 0 FAILURE
OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 651 wordsVignettesYes · dynamicpkgdown siteNoNEWSYes · 67% structuredCode of conductNoContributing guideNo

Examples that run: 64%
Documented parameters: 100%
Return-value docs: 100%
References docs: 0%

Downloads

2.6K

CRAN downloads in the past year

Rank #12,961 · ~7/day · ~213/mo

Releases R versions

Daily download trend is not available in this view yet.

26530 days

77690 days

2.6K1 year

Compare downloads with other packages →

Also on112 r2u26 autocran

Repository

GitHub ↗ smwindecker/mixchar

10Stars

1Forks

4Open issues

0Open PRs

2Releases

357Commits

6Contributors

thermogravimetrydecaytraits

357 commits · Last activity 2025-12-23

Stars over time

2025-02-21 · 102026-07-07 · 10

Repository practices

Upstream repositoryBeta

7 development-tooling and community-health practices detected across 6 families in the upstream repository

Checks run against github.com/smwindecker/mixchar on 2026-08-16.

Continuous integration (1)

Travis CI

CRAN release process (2)

cran-comments.mdrevdep/

Docs source (1)

README.Rmd

Research and citation (1)

codemeta.json

Show all practices

Lint, format, editor (1)

RStudio project

Git structural (1)

.gitattributes

How this is detected·Detection ruleset v1 (2026-07-18)

Dependencies

Declared dependencies

9 external dependencies (excludes base and recommended)

Depends (1)

R >= 3.2.0

Imports (6)

graphicsminpack.lm nloptrstatszoo tmvtnorm

LinkingTo (0)

none

Suggests (5)

knitr rmarkdown devtools testthat covr

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

Datasets

People & History

People (2)

Maintainer (1)

Saras Windecker

Author, Maintainer

Authors (2)

Saras Windecker

Author, Maintainer

Nick Golding

Author

Package Timeline

1 release. R releases are shown for context.

R
R 4.6.0 released · 2026-04-24
0.1.0Latest
2026-03-10 · current release
R
R 4.5.0 released · 2025-04-11

Package metadata

First published: 2018-08-16
Total releases: 1 / 8 yrs
License: MIT + file LICENSE OSI
Minimum R: ≥ 3.2.0
Bundled data: 534 KB / 2 files
Download size: 1.4 MB
Installed size: not tracked yet
With dependencies: not tracked yet

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("mixchar")

Format

Windecker, S., & Golding, N. (2018). mixchar: Mixture Model for the Deconvolution of Thermal Decay Curves (Version 0.1.0) [Computer software]. https://doi.org/10.32614/CRAN.package.mixchar

This is what citation() produces when a package has no citation file of its own. If it prints something else, use that.

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 mixchar version 0.1.0 [Data set]. HJJB, LLC. Data release v2026-08-22. https://doi.org/10.5281/zenodo.21843040

From data release v2026-08-22, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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