R Observatory: Metrics for spectral version 2.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

spectral

2.0Package record

Common Methods of Spectral Data Analysis

2packages depend

5.2Kdownloads / year

–test coverage

11/13flavors OK

Overview

About

Maintained by Martin SeilmayerCRAN page ↗

On discrete data spectral analysis is performed by Fourier and Hilbert transforms as well as with model based analysis called Lomb-Scargle method. Fragmented and irregularly spaced data can be processed in almost all methods. Both, FFT as well as LOMB methods take multivariate data and return standardized PSD. For didactic reasons an analytical approach for deconvolution of noise spectra and sampling function is provided. A user friendly interface helps to interpret the results.

Changes in 2.0

add summary() and print() functions
add deconvolve() function to perform analytically deconvolution
add standardized PSD and false alarm probability to spec.fft-function
spec.fft handles NA-values by zero padding and simple energy recovery.
enhance calculation speed by multithreaded BLAS (must be replaced by user)
add 1D FFT interpolation function
read out cache size for memory usage in spec.lomb
bug fix memory calculation in spec.lomb()
bug fix single frequency in spec.lomb()
optional cluster (hpc) calculation in spec.lomb()
adding a progressbar to spec.lomb()
waterfall() calculates PSD as well

Show all changes in 2.0Hide the rest of the changes in 2.0

changed variable band width in waterfall()
waterfall also ignores NA values and corrects
adding progress bar to waterfall()
extending band pass function BP() by sinc, bi-cubic and gauss kernels
modified all dependend functions which use band pass BP()
add Hanning window function

From NEWS in the release

Install

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

install.packages("spectral", 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-spectral

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-spectral

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-spectral

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

2NOTE11OK

Check messages

NOTECRAN incoming feasibilityr-devel-linux-x86_64-debian-clang, r-devel-linux-x86_64-debian-gcc

Maintainer: ‘Martin Seilmayer <martin.seilmayer@gmail.com>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: person(given = "Martin",
                    family = "Seilmayer",
                    role = c("aut", "cre"),
                    email = "martin.seilmayer@gmail.com")
as necessary.

CRAN check page ↗

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

Status changes

NOTE11 OK, 2 NOTE2026-06-08
ERROR11 OK, 1 NOTE, 1 ERROR2026-06-07
NOTE12 OK, 2 NOTE2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 2.0

READMENoVignettesNoNEWSYes · 33% structured · mentions 2.0Citation fileNoWebsitenot declared in DESCRIPTION

Help pages: 27
Examples that run: 60%9 run in a plain check · 6 hold no code
Exported functions with examples: 50%
Documented parameters: 100%
Return-value docs: 69%
Help pages citing references: 11%

How these are measured

Downloads

5.2K

CRAN downloads in the past year

Rank #9,357 · ~14/day · ~435/mo

Releases R versions

Daily download trend is not available in this view yet.

38530 days

1.1K90 days

5.2K1 year

Compare downloads with other packages →

Also on102 r2u2 autocran121 c2d4u

How downloads are counted

Dependencies

Declared dependencies

3 external dependencies (excludes base and recommended)

Installing spectral adds 4 packages (1 with compiled code, 383 KB of source tarballs). Heaviest: plotrix 313 KB, RhpcBLASctl 41 KB, pbapply 23 KB.

Depends (5)

R >= 3.5.0rasterImagelatticeRhpcBLASctl pbapply

Imports (0)

none

LinkingTo (0)

none

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

2direct

0indirect

Imports 2

Depends, Imports or LinkingTo, most downloaded first

oreo gmsp

How these are counted

Code & Tests

People & History

People (from the free-text Author field) (1)

Martin Seilmayer

Maintainer since 1.0 (2016)

Releases (4)

Pick two releases to compare their code metrics.

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
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
2.0Latest
record
2021-03-29 · current release · diff ↗ ·
added 6 exports
BP, amax, deconvolve, interpolate.fft, win.hann, win.nutt
R
R 4.0.0 released · 2020-04-24
1.3
record
2019-06-03 · 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
1.0.1
record
2016-09-15 · diff ↗
1.0
record
2016-09-13
R
R 3.3.0 released · 2016-05-03

Package metadata

First published: 2016-09-13
Total releases: 4 / 10 yrs
License: GPL-2 OSI
Minimum R: ≥ 3.5.0
Download size: 49 KB

Appears in task views

Time Series Analysis

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("spectral")

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 spectral version 2.0 [Data set]. HJJB, LLC. Data release v2026-10-25. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-25, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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