R Observatory: Metrics for PowerSDI version 1.0.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

PowerSDI

1.0.0Package record

Calculate Standardised Drought Indices Using NASA POWER Data

1packages depend

2.7Kdownloads / year

54.7%test coverage

13/13flavors OK

Overview

About

Maintained by Gabriel Constantino BlainCRAN page ↗GitHub ↗Issues ↗

A set of functions designed to calculate the standardised precipitation and standardised precipitation evapotranspiration indices using NASA POWER data as described in Blain et al. (2023) doi:10.2139/ssrn.4442843. These indices are calculated using a reference data source. The functions verify if the indices' estimates meet the assumption of normality and how well NASA POWER estimates represent real-world data. Indices are calculated in a routine mode. Potential evapotranspiration amounts and the difference between rainfall and potential evapotranspiration are also calculated. The functions adopt a basic time scale that splits each month into four periods. Days 1 to 7, days 8 to 14, days 15 to 21, and days 22 to 28, 29, 30, or 31, where 'TS=4' corresponds to a 1-month length moving window (calculated 4 times per month) and 'TS=48' corresponds to a 12-month length moving window (calculated 4 times per month).

Changes in 1.0.0

Major Change

Replace the suspicious values for PowerSDI.ScientSDI with the limits provided by the users.

From NEWS.md in the release

Install

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

install.packages("PowerSDI", 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/PowerSDI")

Development version from gabrielblain/PowerSDI. 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-powersdi

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled. We list this channel from recorded r2u download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

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-PowerSDI

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-PowerSDI

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed). We list this channel from recorded autoCRAN download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

Health

CRAN checks

13OK

CRAN check page ↗

Slowest check: 1.3 min · r-devel-windows-x86_64

Status changes

OK13 OK2026-09-08
ERROR12 OK, 1 ERROR2026-09-07
OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

Documentation signals are not tracked yet for this package.

Websitenot declared in DESCRIPTION

Vignettes (1)

Introduction to PowerSDI HTML

How these are measured

Downloads

2.7K

CRAN downloads in the past year

Rank #19,007 · ~7/day · ~224/mo

PowerSDI Releases R versions

Daily download trend is not available in this view yet.

26930 days

68290 days

2.7K1 year

Compare downloads with other packages →

Also on93 r2u9 autocran43 c2d4u

How downloads are counted

Repository

gabrielblain/powersdi ↗Account: gabrielblain

4Stars

3Forks

0Open issues

0Open PRs

1Releases

447Commits

2Commit identities

447 commits · Last activity 2024-07-23 · Default branch at 1.0.0.9000, ahead of CRAN 1.0.0 (checked 2026-10-11)

Responsiveness

How these are sampled

PRs merged (all time): 100%
Median days to close, 50 most recently updated closed issues: 1
Median days to close, 50 most recently updated closed PRs: 0

How these are measured

PracticesBeta

5 development-tooling and community-health practices detected across 4 families in the upstream repository

Checks run against github.com/gabrielblain/powersdi on 2026-10-11.

CRAN release process (2)

cran-comments.mdrevdep/

Research and citation (1)

codemeta.json

Lint, format, editor (1)

RStudio project

Git structural (1)

.gitattributes

How this is detected·Detection ruleset v3 (2026-09-26)

Dependencies

Declared dependencies

8 external dependencies (excludes base and recommended)

Installing PowerSDI adds 38 packages (23 with compiled code, 13 MB of source tarballs). Heaviest: Rcpp 1.8 MB, yyjsonr 1.3 MB, jsonlite 1.0 MB.

Depends (1)

R >= 3.1.0

Imports (5)

graphicslmom lubridate nasapowerstats

LinkingTo (0)

none

Suggests (5)

knitr rmarkdown testthat vcr vdiffr

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

1direct

0indirect

Imports 1

Depends, Imports or LinkingTo, most downloaded first

CropWaterBalance

How these are counted

Code & Tests

Datasets

People & History

People (4)

Gabriel Constantino Blain

Author, Maintainer since 0.1.3 (2023)

Leticia L. Martins

Author

Graciela R. Sobierajski

Author

Adam H. Sparks

Author

Releases (2)

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
1.0.0Latest
record
2024-01-15 · current release · diff ↗
0.1.3
record
2023-11-19
R
R 4.3.0 released · 2023-04-21

Package metadata

First published: 2023-11-19
Total releases: 2 / 3 yrs
License: MIT + file LICENSE OSI
Download size: 884 KB

Appears in task views

Hydrological Data and Modeling

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("PowerSDI")

Format

Blain, G. C., Martins, L. L., Sobierajski, G. R., & Sparks, A. H. (2024). PowerSDI: Calculate Standardised Drought Indices Using NASA POWER Data (Version 1.0.0) [Computer software]. https://doi.org/10.32614/CRAN.package.PowerSDI

This is what citation() produces when a package has no citation file of its own. If it prints something else, use that.

Cite the R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

Format

APA

Balamuta, J. J. (2026). R Observatory: Metrics for PowerSDI version 1.0.0 [Data set]. HJJB, LLC. Data release v2026-10-19. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-19, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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