SPIChanges

0.2.1

Improves the Interpretation of the Standardized Precipitation Index Under Changing Climate Conditions

0packages depend

3.2Kdownloads / year

96.8%test coverage

13/13checks pass

Overview

About

Maintained by Gabriel Constantino BlainFirst published 2025-02-053 releasesCRAN page ↗GitHub ↗

Improves the interpretation of the Standardized Precipitation Index under changing climate conditions. The package uses the nonstationary approach proposed in Blain et al. (2022) doi:10.1002/joc.7550 to detect trends in rainfall quantities and to quantify the effect of such trends on the probability of a drought event occurring.

Install

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

install.packages("SPIChanges", 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("gabrielblain/SPIChanges")

Development version from gabrielblain/SPIChanges. 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-spichanges

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

# 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-SPIChanges

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

Health

CRAN checks

13OK

Slowest check: 10.1 min · r-oldrel-macos-x86_64

Check history

OK2026-06-11
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-06-09
12 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
OK2026-05-23
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-05-22
12 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

Documentation signals are not tracked yet for this package.

Downloads

3.2K

CRAN downloads in the past year

Rank #19,662 · ~9/day · ~269/mo

SPIChanges Releases R versions

Daily download trend is not available in this view yet.

20230 days

59090 days

3.2K1 year

Compare downloads with other packages →

Also on111 r2u33 autocran

Repository

GitHub ↗ gabrielblain/spichanges

5Stars

1Forks

0Open issues

0Open PRs

1Releases

268Commits

2Contributors

268 commits · Last activity 2025-10-23 · 0% stars, 30d

Repository practices

Upstream repositoryBeta

6 development-tooling and community-health practices detected across 5 families in the upstream repository

Checks run against github.com/gabrielblain/spichanges on 2026-07-19.

Continuous integration (1)

GitHub Actions

CRAN release process (2)

cran-comments.mdrevdep/

Docs source (1)

README.Rmd

Research and citation (1)

codemeta.json

Show all practices

Lint, format, editor (1)

RStudio project

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

Dependencies

Declared dependencies

24 external dependencies (excludes base and recommended)

Depends (1)

R >= 3.5

Imports (9)

gamlss gamlss.dist lubridate MuMIn rlang spsUtilstatsbrglm2 zoo

LinkingTo (0)

none

Suggests (17)

archive curl doParallel dplyr foreach ggplot2gridknitr ncdf4 patchwork RColorBrewer rmarkdown roxyglobals sf purrr testthat tidyr

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

Datasets

People & History

People (4)

Maintainer (1)

Gabriel Constantino Blain

Author, Maintainer

Authors (4)

Gabriel Constantino Blain

Author, Maintainer

Leticia L. Martins

Author

Graciela R. Sobierajski

Author

Adam H. Sparks

Author

Package Timeline

3 releases. R releases are shown for context.

R
R 4.6.0 released · 2026-04-24
0.2.1Latest
2025-10-23 · current release · diff ↗
0.2.0
2025-06-06 · diff ↗
R
R 4.5.0 released · 2025-04-11
0.1.0
2025-02-05
R
R 4.4.0 released · 2024-04-24

Package metadata

First published: 2025-02-05
Total releases: 3 / 1 yrs
License: MIT + file LICENSE OSI
Download size: 374 KB
Installed size: not tracked yet
With dependencies: not tracked yet

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