baytrends

2.0.14

Long Term Water Quality Trend Analysis

0packages depend

5.1Kdownloads / year

3.7%test coverage

13/13checks pass

Overview

About

Maintained by Erik W LeppoFirst published 2018-07-1912 releasesCRAN page ↗GitHub ↗

Enable users to evaluate long-term trends using a Generalized Additive Modeling (GAM) approach. The model development includes selecting a GAM structure to describe nonlinear seasonally-varying changes over time, incorporation of hydrologic variability via either a river flow or salinity, the use of an intervention to deal with method or laboratory changes suspected to impact data values, and representation of left- and interval-censored data. The approach has been applied to water quality data in the Chesapeake Bay, a major estuary on the east coast of the United States to provide insights to a range of management- and research-focused questions. Methodology described in Murphy (2019) doi:10.1016/j.envsoft.2019.03.027.

Install

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

install.packages("baytrends", 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("tetratech/baytrends")

Development version from tetratech/baytrends. 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-baytrends

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-baytrends

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-baytrends

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

Health

CRAN checks

13OK

Slowest check: 6.9 min · r-release-macos-x86_64

Code health

Yes

Tests · ratio 0.02

3.7%

Coverage · measured lines

100%

Documentation · exports

Dependencies · direct

Check history

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
OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 211 wordsVignettesYes · dynamicpkgdown siteNoNEWSYes · 67% structuredCode of conductNoContributing guideNo

Examples that run: 74%
Documented parameters: 98%
Return-value docs: 75%
References docs: 1%

Downloads

5.1K

CRAN downloads in the past year

Rank #9,860 · ~14/day · ~423/mo

Releases R versions

Daily download trend is not available in this view yet.

33130 days

1.1K90 days

5.1K1 year

Compare downloads with other packages →

Also on178 r2u49 c2d4u

Repository

GitHub ↗ tetratech/baytrends

12Stars

4Forks

14Open issues

0Open PRs

10Releases

350Commits

3Contributors

r-package

350 commits · Last activity 2026-02-24

Stars over time

2024-05-31 · 122026-07-07 · 12

Repository practices

Upstream repositoryBeta

6 development-tooling and community-health practices detected across 6 families in the upstream repository

Checks run against github.com/tetratech/baytrends on 2026-07-30.

Continuous integration (1)

GitHub Actions

Reproducibility and dev environment (1)

data-raw/

CRAN release process (1)

cran-comments.md

Docs source (1)

README.Rmd

Show all practices

Lint, format, editor (1)

RStudio project

Governance and community (1)

Issue templates

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

Dependencies

Declared dependencies

18 external dependencies (excludes base and recommended)

Depends (1)

R >= 4.1.0

Imports (16)

dataRetrieval digest dplyr fitdistrplusgrDeviceslubridate knitr memoisemgcvpander plyr readxl sessioninfosurvivaltibble tidyr

LinkingTo (0)

none

Suggests (6)

devtools imputeTS markdownnlmermarkdown testthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

Datasets

People & History

People (5)

Maintainer (1)

Erik W Leppo

Author, Maintainer

Authors (5)

Author, Maintainer

Author

Author

Author

Author

Listed in earlier versions (1)

Leppo

no longer listed · 2.0.14

Package Timeline

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

R
R 4.6.0 released · 2026-04-24
2.0.14Latest
2026-02-24 · current release · diff ↗
R
R 4.5.0 released · 2025-04-11
2.0.12
2024-07-26 · diff ↗
R
R 4.4.0 released · 2024-04-24
2.0.11
2024-02-23 · diff ↗
2.0.9
2023-05-25 · diff ↗
R
R 4.3.0 released · 2023-04-21
2.0.8
2022-05-05 · diff ↗
R
R 4.2.0 released · 2022-04-22
2.0.7
2022-02-25 · diff ↗
R
R 4.1.0 released · 2021-05-18
2.0.5
2021-05-14 · diff ↗
2.0.4
2021-04-19 · diff ↗
2.0.2
2020-11-24 · diff ↗
R
R 4.0.0 released · 2020-04-24

Show 5 earlier events

1.2.1
2020-03-31 · diff ↗
R
R 3.6.0 released · 2019-04-26
1.1.0
2019-03-14 · diff ↗
1.0.7
2018-07-19
R
R 3.5.0 released · 2018-04-23

Package metadata

First published: 2018-07-19
Total releases: 12 / 8 yrs
License: GPL-3 OSI
Minimum R: ≥ 4.1.0
Bundled data: 524 KB / 6 files
Download size: 3.7 MB
Installed size: not tracked yet
With dependencies: not tracked yet

Appears in task views

Hydrological Data and Modeling

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