SQIpro

0.1.0

Comprehensive Soil Quality Index Computation and Visualization

0packages depend

1.3Kdownloads / year

38.9%test coverage

12/13checks pass

Overview

About

Maintained by Sadikul IslamFirst published 2026-04-201 releasesCRAN page ↗

Provides a comprehensive, modular framework for computing the Soil Quality Index (SQI) using six established methods: Linear Scoring (Doran and Parkin, 1994, doi:10.2136/sssaspecpub35.c1), Regression-based (Masto et al., 2008, doi:10.1007/s10661-007-9697-z), Principal Component Analysis-based (Andrews et al., 2004, doi:10.2136/sssaj2004.1945), Fuzzy Logic, Entropy Weighting (Shannon, 1948, doi:10.1002/j.1538-7305.1948.tb01338.x), and TOPSIS (Hwang and Yoon, 1981, doi:10.1007/978-3-642-48318-9). Implements four variable scoring functions: more-is-better, less-is-better, optimum-value, and trapezoidal, following Karlen and Stott (1994, doi:10.2136/sssaspecpub35.c4). Includes automated Minimum Data Set selection via Principal Component Analysis with Variance Inflation Factor filtering (Kaiser, 1960, doi:10.1177/001316446002000116), one-way ANOVA with Tukey HSD post-hoc tests, leave-one-out sensitivity analysis, and publication-quality visualization using 'ggplot2'.

Install

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

install.packages("SQIpro", 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-sqipro

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-SQIpro

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-SQIpro

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

Health

CRAN checks

1NOTE12OK

Failing flavors

NOTE r-devel-linux-x86_64-debian-gcc

Slowest check: 4.1 min · r-devel-linux-x86_64-fedora-clang

Code health

Yes

Tests · ratio 0.08

38.9%

Coverage · measured lines

100%

Documentation · exports

Dependencies · direct

Check history

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
ERROR2026-06-08
12 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
OK2026-04-21
7 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 327 wordsVignettesYes · dynamicpkgdown siteNoNEWSYes · 67% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 99%
Return-value docs: 100%
References docs: 69%

Downloads

1.3K

CRAN downloads in the past year

Rank #9,561 · ~4/day · ~112/mo

Releases R versions

Daily download trend is not available in this view yet.

14830 days

1.1K90 days

1.3K1 year

Compare downloads with other packages →

Also on30 r2u

Dependencies

Declared dependencies

17 external dependencies (excludes base and recommended)

Depends (1)

R >= 4.0.0

Imports (11)

dplyr tidyr ggplot2 FactoMineR factoextrastatsmethodsrlang matrixStats glmnet car

LinkingTo (0)

none

Suggests (8)

openxlsx readxl ggpubr testthat knitr rmarkdown spelling 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)

Sadikul Islam

Author, Maintainer

Authors (2)

Sadikul Islam

Author, Maintainer

Rajesh Kaushal

Author

Package Timeline

1 release. R releases are shown for context.

R
R 4.6.0 released · 2026-04-24
0.1.0Latest
2026-04-20 · current release
R
R 4.5.0 released · 2025-04-11

Package metadata

First published: 2026-04-20
Total releases: 1 / 1 yrs
License: GPL (>= 3) OSI
Minimum R: ≥ 4.0.0
Bundled data: 2.9 KB / 1 file
Download size: not tracked yet
Installed size: not tracked yet
With dependencies: not tracked yet

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