NST

3.1.10

Normalized Stochasticity Ratio

1packages depend

7.4Kdownloads / year

–test coverage

11/13checks pass

Overview

About

Maintained by Daliang NingFirst published 2019-06-156 releasesCRAN page ↗GitHub ↗

To estimate ecological stochasticity in community assembly. Understanding the community assembly mechanisms controlling biodiversity patterns is a central issue in ecology. Although it is generally accepted that both deterministic and stochastic processes play important roles in community assembly, quantifying their relative importance is challenging. The new index, normalized stochasticity ratio (NST), is to estimate ecological stochasticity, i.e. relative importance of stochastic processes, in community assembly. With functions in this package, NST can be calculated based on different similarity metrics and/or different null model algorithms, as well as some previous indexes, e.g. previous Stochasticity Ratio (ST), Standard Effect Size (SES), modified Raup-Crick metrics (RC). Functions for permutational test and bootstrapping analysis are also included. Previous ST is published by Zhou et al (2014) doi:10.1073/pnas.1324044111. NST is modified from ST by considering two alternative situations and normalizing the index to range from 0 to 1 (Ning et al 2019) doi:10.1073/pnas.1904623116. A modified version, MST, is a special case of NST, used in some recent or upcoming publications, e.g. Liang et al (2020) doi:10.1016/j.soilbio.2020.108023. SES is calculated as described in Kraft et al (2011) doi:10.1126/science.1208584. RC is calculated as reported by Chase et al (2011) doi:10.1890/ES10-00117.1 and Stegen et al (2013) doi:10.1038/ismej.2013.93. Version 3 added NST based on phylogenetic beta diversity, used by Ning et al (2020) doi:10.1038/s41467-020-18560-z.

Install

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

install.packages("NST", 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("DaliangNing/NST")

Development version from DaliangNing/NST. 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-nst

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-NST

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-NST

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

Health

CRAN checks

2NOTE11OK

Failing flavors

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

Slowest check: 2.4 min · r-devel-linux-x86_64-fedora-clang

Code health

None

Tests · ratio 0.00

not tracked

Coverage

Dependencies · direct

Check history

NOTE2026-06-09
11 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-06-08
11 OK · 1 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
NOTE2026-03-10
12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMENoVignettesNopkgdown siteNoNEWSNoCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: not tracked
Return-value docs: not tracked
References docs: 69%

Downloads

7.4K

CRAN downloads in the past year

Rank #5,338 · ~20/day · ~617/mo

Releases R versions

Daily download trend is not available in this view yet.

53330 days

1.7K90 days

7.4K1 year

Compare downloads with other packages →

Also on90 r2u

Repository

GitHub ↗ daliangning/nst

31Stars

32Forks

0Open issues

0Open PRs

0Releases

86Commits

1Contributors

License GPL-2.0 · 86 commits · Last activity 2024-10-22 · 0% stars, 30d

Stars over time

2025-06-16 · 262026-07-07 · 31

Repository practices

Upstream repositoryBeta

Checks run against github.com/daliangning/nst on 2026-07-30.

No development-tooling practices detected in the upstream repository.

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

Dependencies

Declared dependencies

6 external dependencies (excludes base and recommended)

Depends (1)

R >= 3.5.0

Imports (7)

veganparallelpermute ape bigmemory iCAMP DirichletReg

LinkingTo (0)

none

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

1direct

0indirect

pctax

Code & Tests

Datasets

People & History

People (0)

Author records are not tracked yet for this package.

Listed in earlier versions (1)

Daliang Ning

no longer listed · 2.0.3 to 3.1.10

Package Timeline

6 releases. Pick two to compare their code metrics. R releases are shown for context.

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
3.1.10Latest
2022-06-05 · current release · diff ↗
unarchivedReturned to CRAN
2022-06-05
archivedRemoved from CRAN
2022-04-24
required archived package 'iCAMP'
R
R 4.2.0 released · 2022-04-22
3.1.9
2022-04-11 · diff ↗
R
R 4.1.0 released · 2021-05-18
3.0.6
2021-01-08 · diff ↗
3.0.3
2020-09-16 · diff ↗
R
R 4.0.0 released · 2020-04-24
2.0.4
2019-10-08 · diff ↗
2.0.3
2019-06-15
R
R 3.6.0 released · 2019-04-26

Package metadata

First published: 2019-06-15
Total releases: 6 / 7 yrs
License: GPL-2 OSI
Minimum R: ≥ 3.5.0
Bundled data: 22 KB / 4 files
Download size: 59 KB
Installed size: not tracked yet
With dependencies: not tracked yet

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