This package was removed from CRAN on 2026-05-14. Its history is shown below.

Reason: email to the maintainer is undeliverable

Details below reflect version 0.1.2, its last release before removal.

cspec

0.1.2

Complete Discrete Fourier Transform (DFT) and Periodogram

0packages depend

1.5Kdownloads / year

–test coverage

–checks pass

Overview

About

Maintained by Junho Yang1 releasesCRAN page ↗

Calculate the predictive discrete Fourier transform, complete discrete Fourier transform, complete periodogram, and tapered complete periodogram. This algorithm is based on the preprint "Spectral methods for small sample time series: A complete periodogram approach" (2020) by Sourav Das, Suhasini Subba Rao, and Junho Yang.

Install

R (source archive)Ubuntu (r2u)openSUSE (OBS)

url <- "https://cran.r-project.org/src/contrib/Archive/cspec/cspec_0.1.2.tar.gz"
pkgFile <- "cspec_0.1.2.tar.gz"
download.file(url, pkgFile)
install.packages(pkgFile, type = "source", repos = NULL)

This package is no longer on CRAN, so install.packages() cannot fetch it by name. This downloads the last archived source (0.1.2) and builds it locally. Install its dependencies first, and note that building from source needs the usual compiler toolchain.

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-cspec

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-cspec

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

Health

CRAN checks

CRAN check results are not tracked yet.

Code health

None

Tests · ratio 0.00

not tracked

Coverage

100%

Documentation · exports

None

Vignettes

README

Dependencies · direct

Check history

NOTE2026-03-10
12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Downloads

1.5K

CRAN downloads in the past year

Rank #24,409 · ~4/day · ~123/mo

Releases R versions

Daily download trend is not available in this view yet.

030 days

090 days

1.5K1 year

Compare downloads with other packages →

Also on101 r2u9 autocran

Dependencies

Declared dependencies

0 external dependencies (excludes base and recommended)

Depends (0)

none

Imports (0)

none

LinkingTo (0)

none

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

–indirect (not tracked)

Nothing depends on this yet.

Code & Tests

Code Composition

Rd 352 (69%)R 161 (31%)

Code characteristics

Cyclomatic complexity: 3.0 median / 9 max
Documented parameters: 100%

Test coverage

Line coverage

–

Expression

–

Tests / Examples

–

Functions

6 6 exported

Complexity

3.7 avg / 9 max

Call network

6 nodes / 7 edges

Test coverage has not been measured for this package yet; nodes fall back to a neutral fill.

Call graph

Open call graph →

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Lowest coverage

Per-function coverage is not measured for this package yet.

People & History

People (1)

Other (1)

Junho Yang

Contributor

Package Timeline

1 release. R releases are shown for context.

archivedRemoved from CRAN
2026-05-14
email to the maintainer is undeliverable
R
R 4.6.0 released · 2026-04-24
0.1.2
2026-03-10
R
R 4.5.0 released · 2025-04-11

Package metadata

Total releases: 1
License: GPL-2 OSI
Download size: 3.7 KB
Installed size: not tracked yet
With dependencies: not tracked yet