R Observatory: Metrics for Rquefts version 1.2-8

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

Rquefts

1.2-8Package record

Quantitative Evaluation of the Native Fertility of Tropical Soils

0packages depend

3.2Kdownloads / year

–test coverage

13/13flavors OK

Overview

About

Maintained by Robert J. HijmansCRAN page ↗GitHub ↗Issues ↗

An implementation of the QUEFTS (Quantitative Evaluation of the Native Fertility of Tropical Soils) model. The model (1) estimates native nutrient (N, P, K) supply of soils from a few soil chemical properties; and (2) computes crop yield given that supply, crop parameters, fertilizer application, and crop attainable yield. See Janssen et al. (1990) doi:10.1016/0016-7061(90)90021-Z for the technical details and Sattari et al. (2014) doi:10.1016/j.fcr.2013.12.005 for a recent evaluation and improvements. There are also functions to compute optimal fertilizer application rates.

Install

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

install.packages("Rquefts", 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("cropmodels/Rquefts")

Development version from cropmodels/Rquefts. 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-rquefts

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-Rquefts

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-Rquefts

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: 3.1 min · r-devel-windows-x86_64

Status changes

OK13 OK2026-09-08
ERROR12 OK, 1 ERROR2026-09-07
OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK13 OK2026-05-02

Show 6 earlier changesHide 6 earlier changes

NOTE11 OK, 1 NOTE2026-04-25
OK14 OK2026-04-22
ERROR13 OK, 1 ERROR2026-04-18
OK14 OK2026-04-16
NOTE13 OK, 1 NOTE2026-03-28
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.2-8

README· In the repository, left out of the releaseVignettesNoNEWSYes · 0% structuredCitation fileNoWebsitenot declared in DESCRIPTION

Help pages: 13includes a package overview page
Examples that run: 100%12 run in a plain check
Exported functions with examples: 100%
Documented parameters: 100%
Return-value docs: 70%
Help pages citing references: 23%

How these are measured

Downloads

3.2K

CRAN downloads in the past year

Rank #12,363 · ~9/day · ~265/mo

Releases R versions

Daily download trend is not available in this view yet.

28630 days

90590 days

3.2K1 year

Compare downloads with other packages →

Also on381 r2u5 autocran91 c2d4u

How downloads are counted

Repository

cropmodels/rquefts ↗Organization: cropmodels

3Stars

1Forks

0Open issues

0Open PRs

0Releases

47Commits

2Commit identities

fertilizermodel

License file reads as GPL-3.0 · 47 commits · Last activity 2025-12-29 · The default branch showed an older version (1.2-6) than CRAN on 2026-10-22

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: 10

Stars over time

2025-02-23 · 32026-07-07 · 3

How these are measured

PracticesBeta

Checks run against github.com/cropmodels/rquefts on 2026-10-22.

No development-tooling practices detected in the upstream repository.

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

Dependencies

Declared dependencies

5 external dependencies (excludes base and recommended)

Installing Rquefts adds 2 packages (2 with compiled code, 2.4 MB of source tarballs). Heaviest: Rcpp 1.8 MB, meteor 632 KB.

Depends (0)

none

Imports (3)

meteormethodsRcpp

LinkingTo (1)

Rcpp

Suggests (2)

terra limSolve

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 (3)

Robert J. Hijmans

Maintainer since 1.0-5 (2019), Author

Pieter Pypers

Contributor, Author · added in 1.2-1

Joost Wolff

Contributor

Releases (7)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
1.2-8Latest
record
2026-03-17 · current release · diff ↗ ·
added 1 export
optApp
unarchivedReturned to CRAN
2025-07-18
1.2-5
record
2025-07-18 · diff ↗
archivedRemoved from CRAN
2025-06-02
requires archived package 'limSolve'
R
R 4.5.0 released · 2025-04-11
1.2-4
record
2024-10-23 · diff ↗
R
R 4.4.0 released · 2024-04-24
1.2-3
record
2023-10-24 · diff ↗ ·
removed 1 export
predict

added 2 exports
quefts_fert, revSupply
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
1.2-1
record
2021-04-30 · diff ↗ ·
removed 1 export
pattern:^[[:alpha:]]+

added 10 exports
nutSupply1, nutSupply2, fertilizers, fertApp, nutrientRates, predict, quefts_biom, quefts_soil, quefts_crop, quefts
R
R 4.0.0 released · 2020-04-24
1.0-7
record
2020-03-13 · diff ↗
1.0-5
record
2019-10-01

Show 1 earlier eventHide 1 earlier event

R
R 3.6.0 released · 2019-04-26

Package metadata

First published: 2019-10-01
Total releases: 7 / 7 yrs
License: GPL (>= 3) OSI
Download size: 88 KB

Appears in task views

Agricultural Science

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("Rquefts")

Format

Hijmans, R. J., Pypers, P., & Wolff, J. (2026). Rquefts: Quantitative Evaluation of the Native Fertility of Tropical Soils (Version 1.2-8) [Computer software]. https://doi.org/10.32614/CRAN.package.Rquefts

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 Rquefts version 1.2-8 [Data set]. HJJB, LLC. Data release v2026-10-24. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-24, which the citation names so these numbers can be found later. More on citing and the projects behind them.

Report a problem with this page →