TITAN2

2.4.4

Threshold Indicator Taxa Analysis

1packages depend

5.6Kdownloads / year

–test coverage

12/13checks pass

Overview

About

Maintained by David KahleFirst published 2015-12-197 releasesCRAN page ↗

Uses indicator species scores across binary partitions of a sample set to detect congruence in taxon-specific changes of abundance and occurrence frequency along an environmental gradient as evidence of an ecological community threshold. Relevant references include Baker and King (2010) doi:10.1111/j.2041-210X.2009.00007.x, King and Baker (2010) doi:10.1899/09-144.1, and Baker and King (2013) doi:10.1899/12-142.1.

Install

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

install.packages("TITAN2", 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-titan2

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-TITAN2

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-TITAN2

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: 3.9 min · r-oldrel-windows-x86_64

Code health

None

Tests · ratio 0.00

not tracked

Coverage

100%

Documentation · exports

Dependencies · direct

Check history

NOTE2026-08-01
12 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
OK2026-04-25
12 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-03-30
13 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 167 wordsVignettesYes · dynamicpkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 87%
Return-value docs: 100%
References docs: 95%

Downloads

5.6K

CRAN downloads in the past year

Rank #8,458 · ~15/day · ~469/mo

Releases R versions

Daily download trend is not available in this view yet.

37630 days

1.2K90 days

5.6K1 year

Compare downloads with other packages →

Also on150 r2u7 autocran

Dependencies

Declared dependencies

10 external dependencies (excludes base and recommended)

Depends (1)

R >= 4.1.0

Imports (9)

paralleldplyr ggplot2 glue cowplot ggridges purrr tibble cli

LinkingTo (0)

none

Suggests (2)

knitr rmarkdown

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

1direct

0indirect

pTITAN2

Code & Tests

Datasets

People & History

People (3)

Maintainer (1)

David Kahle

Author, Copyright holder, Maintainer

Authors (3)

David Kahle

Author, Copyright holder, Maintainer

Matthew E. Baker

Author, Copyright holder

Ryan S. King

Author, Copyright holder

David Kahle

Author, Copyright holder, Maintainer

Matthew E. Baker

Author, Copyright holder

Ryan S. King

Author, Copyright holder

Package Timeline

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

R
R 4.6.0 released · 2026-04-24
2.4.4Latest
2025-10-16 · current release · diff ↗
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
2.4.3
2023-11-14 · diff ↗
2.4.2
2023-05-31 · diff ↗
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
2.4.1
2020-12-07 · diff ↗
R
R 4.0.0 released · 2020-04-24
2.4
2019-12-05 · diff ↗
2.3
2019-08-29 · diff ↗
R
R 3.6.0 released · 2019-04-26
R
R 3.5.0 released · 2018-04-23
R
R 3.4.0 released · 2017-04-21

Show 3 earlier events

R
R 3.3.0 released · 2016-05-03
2.1
2015-12-19
R
R 3.2.0 released · 2015-04-16

Package metadata

First published: 2015-12-19
Total releases: 7 / 11 yrs
License: GPL-2 OSI
Minimum R: ≥ 4.1.0
Bundled data: 1.0 MB / 3 files
Download size: 3.6 MB
Installed size: not tracked yet
With dependencies: not tracked yet

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