R Observatory: Metrics for sgolay version 1.0.4

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

sgolay

1.0.4Package record

Efficient Savitzky-Golay Filtering

0packages dependsuggested by 1

2.6Kdownloads / year

76.0%test coverage

13/13flavors OK

Overview

About

Maintained by Sergio Oller MorenoCRAN page ↗GitHub ↗Issues ↗

Smoothing signals and computing their derivatives is a common requirement in signal processing workflows. Savitzky-Golay filters are a established method able to do both (Savitzky and Golay, 1964 doi:10.1021/ac60214a047). This package implements one dimensional Savitzky-Golay filters that can be applied to vectors and matrices (either row-wise or column-wise). Vectorization and memory allocations have been profiled to reduce computational fingerprint. Short filter lengths are implemented in the direct space, while longer filters are implemented in frequency space, using a Fast Fourier Transform (FFT).

Changes in 1.0.4

Fix a crash on R >= 4.3 in sgolayfilt() when a plain (unclassed) filter coefficient matrix is passed as p (dim(p) > 1 errored inside && for any matrix; replaced with is.matrix(p)).
sgolayfilt() now validates that a custom filter coefficient matrix p has an odd number of rows, instead of silently producing incorrect boundary values.
sgolayfilt() now errors with a clear message when x is shorter than the filter length, instead of an obscure "subscript out of bounds" error.
Added regression tests for the "auto" engine's filter-length threshold and the fft-to-filter NA fallback.

From NEWS.md in the release

Install

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

install.packages("sgolay", 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("zeehio/sgolay")

Development version from zeehio/sgolay. 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-sgolay

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-sgolay

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-sgolay

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: 1.9 min · r-devel-windows-x86_64

Status changes

OK13 OK2026-08-04
NOTE12 OK, 1 NOTE2026-08-01
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.0.4

READMEYes · 89 wordsVignettesNoNEWSYes · 100% structured · mentions 1.0.4Citation fileNoWebsitenot declared in DESCRIPTION

Help pages: 2 (1 internal)
Examples that run: 100%1 run in a plain check
Exported functions with examples: 50%
Documented parameters: 83%
Return-value docs: 50%
Help pages citing references: 0%

How these are measured

Downloads

2.6K

CRAN downloads in the past year

Rank #15,218 · ~7/day · ~213/mo

Releases R versions

Daily download trend is not available in this view yet.

24230 days

80590 days

2.6K1 year

Compare downloads with other packages →

Also on354 r2u2 autocran

How downloads are counted

Repository

zeehio/sgolay ↗Account: zeehio

7Stars

1Forks

0Open issues

0Open PRs

0Releases

66Commits

2Commit identities

License file reads as GPL-2.0 · 66 commits · Last activity 2026-07-10 · 0% stars, 30d · Default branch at 1.0.4.9000, ahead of CRAN 1.0.4 (checked 2026-10-21)

Responsiveness

How these are sampled

PRs merged (all time): 100%
Median days to close, 50 most recently updated closed issues: 6
Median days to close, 50 most recently updated closed PRs: 0

Stars over time

2024-03-08 · 62026-07-07 · 7

How these are measured

PracticesBeta

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

Checks run against github.com/zeehio/sgolay on 2026-10-21.

Continuous integration (2)

GitHub ActionsR CMD check workflow

The R CMD check workflow runs on Linux, macOS and Windows, and on R-devel

Governance and community (1)

The repository owner accepts GitHub Sponsors

Docs source (1)

README.Rmd

Coverage (1)

Coverage reporting (Codecov)

Show all practicesHide 2 practices

CRAN release process (1)

cran-comments.md

Lint, format, editor (1)

RStudio project

How this is detected·Detection ruleset v4 (2026-10-20)

AI coding toolsBeta

This repository shows signs of AI coding tools.

Claude Codefirst seen 2026-07-09
Pull request it wrote: opened by a project member
Commits: 5 by its own account · at least 5 crediting it in the message

Models named in its commits

Claude Sonnet 55 commits · Jul 2026

Counts are commits, not lines of code. Commits by a tool's accounts count once across all of its accounts. Commits crediting it are the largest count among its credit lines, a minimum.How this is detected·Detection ruleset v4 (updated 2026-09-27)

Dependencies

Declared dependencies

3 external dependencies (excludes base and recommended)

Installing sgolay adds 1 package (1 with compiled code, 1.9 MB of source tarballs). Heaviest: signal 1.9 MB.

Depends (0)

none

Imports (1)

signal

LinkingTo (0)

none

Suggests (2)

covr RUnit

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Suggested by 1

Suggests, most downloaded first

OpenSpecy

How these are counted

Code & Tests

People & History

People (7)

Sergio Oller Moreno