R Observatory: Metrics for ChillModels version 1.0.2

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

ChillModels

1.0.2Package record

Processing Chill and Heat Models for Temperate Fruit Trees

0packages depend

2.8Kdownloads / year

–test coverage

13/13flavors OK

Overview

About

Maintained by Rafael Henrique PertilleCRAN page ↗

Calculates the chilling and heat accumulation for studies of the temperate fruit trees. The models in this package are: Utah (Richardson et al., 1974, ISSN:0018-5345), Positive Chill Units - PCU (Linsley-Noaks et al., 1995, ISSN:1017-0316), GDH-A - Growing Degree Hours by Anderson et al.(1986, ISSN:0567-7572), GDH-R - Growing Degree Hours by Richardson et al.(1975, ISSN:0018-5345), North Carolina (Shaltout e Unrath, 1983, ISSN:0003-1062), Landsberg Model (Landsberg, 1974, ISSN:0305-7364), Q10 Model (Bidabe, 1967, ISSN:0031-9368), Jones Model (Jones et al., 2013 DOI:10.1111/j.1438-8677.2012.00590.x), Low-Chill Model (Gilreath and Buchanan, 1981, ISSN:0003-1062), Model for Cherry "Sweetheart" (Guak and Nielsen, 2013 DOI:10.1007/s13580-013-0140-9), Model for apple "Gala" (Guak and Nielsen, 2013 DOI:10.1007/s13580-013-0140-9), Taiwan Model (Lu et al., 2012 DOI:10.17660/ActaHortic.2012.962.35), Dynamic Model (Fishman et al., 1987, ISSN:0022-5193) adapted from the function Dynamic_Model() of the 'chillR' package (Luedeling, 2018), Unified Model (Chuine et al., 2016 DOI:10.1111/gcb.13383) and Heat Restriction model.

Install

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

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

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

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-chillmodels

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-ChillModels

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-ChillModels

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: 53 s · r-oldrel-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 1.0.2

READMENoVignettesNoNEWSNoCitation fileNoWebsitenot declared in DESCRIPTION

Help pages: 19
Examples that run: 100%18 run in a plain check
Exported functions with examples: 100%
Documented parameters: 100%
Return-value docs: 100%
Help pages citing references: 74%

How these are measured

Downloads

2.8K

CRAN downloads in the past year

Rank #14,171 · ~8/day · ~237/mo

Releases R versions

Daily download trend is not available in this view yet.

35830 days

82890 days

2.8K1 year

Compare downloads with other packages →

Also on80 r2u2 autocran

How downloads are counted

Dependencies

Declared dependencies

4 external dependencies (excludes base and recommended)

Installing ChillModels adds no packages beyond those that come with R.

Depends (1)

R >= 3.6.0

Imports (0)

none

LinkingTo (0)

none

Suggests (4)

chillR dplyr lubridate ggplot2

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

How these are counted

Code & Tests

Datasets

People & History

People (4)

Rafael Henrique Pertille

Author, Maintainer since 1.0.0 (2019)

Idemir Citadin

Author, Contributor

Marieli Teresinha Guerrezi

Author, Contributor

Marcos Robson Sachet

Author, Contributor

Releases (3)

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
unarchivedReturned to CRAN
2020-01-16
1.0.2Latest
record
2020-01-16 · current release · diff ↗
archivedRemoved from CRAN
2019-12-18
check problems were not corrected in time
1.0.1
record
2019-12-05 · diff ↗
R
R 3.6.0 released · 2019-04-26
1.0.0
record
2019-03-07
R
R 3.5.0 released · 2018-04-23

Package metadata

First published: 2019-03-07
Total releases: 3 / 7 yrs
License: GPL-3 OSI
Minimum R: ≥ 3.6.0
Bundled data: 10 KB / 1 file
Download size: 22 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("ChillModels")

Format

Pertille, R. H., Citadin, I., Guerrezi, M. T., & Sachet, M. R. (2020). ChillModels: Processing Chill and Heat Models for Temperate Fruit Trees (Version 1.0.2) [Computer software]. https://doi.org/10.32614/CRAN.package.ChillModels

This package has no citation file, so citation() returns this entry built from DESCRIPTION.

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 ChillModels version 1.0.2 [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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