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genpca

0.2.1

Generalized Principal Component Analysis

0packages depend
572downloads / year
–test coverage
4/13flavors OK

Overview

About
Maintained by Brad BuchsbaumCRAN page ↗GitHub ↗Website ↗Issues ↗

Generalized PCA and related matrix decompositions in weighted inner-product spaces. Methods are based on Allen, G. I., Grosenick, L., and Taylor, J. (2014) doi:10.1080/01621459.2013.852978, "A generalized least-square matrix decomposition", Journal of the American Statistical Association, 109(505), 145-159; and Abdi, H. (2007), "Singular value decomposition (SVD) and generalized singular value decomposition" https://personal.utdallas.edu/~herve/Abdi-SVD2007-pretty.pdf, in "Encyclopedia of Measurement and Statistics", 907-912.

Changes in 0.2.1

CRAN resubmission fixes

  • The internal MN-PCA SPD solver now rejects non-finite matrices before Cholesky factorization and verifies that the computed inverse is finite. This makes its failure behavior consistent across BLAS/LAPACK implementations.

From NEWS.md in the release

Install

Health

CRAN checks
9ERROR4OK
Check messages
ERRORtestsr-devel-linux-x86_64-debian-clang, r-devel-linux-x86_64-debian-gcc, r-devel-linux-x86_64-fedora-clang, r-devel-linux-x86_64-fedora-gcc, r-devel-windows-x86_64, r-oldrel-windows-x86_64, r-patched-linux-x86_64, r-release-linux-x86_64, r-release-windows-x86_64

r-devel-windows-x86_64, r-release-windows-x86_64

Running 'testthat.R' [48s]
Running the tests in 'tests/testthat.R' failed.
Complete output:
  > library(testthat)
  > library(genpca)
  Registered S3 method overwritten by 'genpca':
    method                   from        
    transfer.cross_projector multivarious
  
  Attaching package: 'genpca'
  
  The following object is masked from 'package:base':
  
      truncate
  
  > 
  > test_check("genpca")
  Solving generalized eigenproblem C v = lambda R v...
  Preparing constraints...
  Applying pre-processing...
  Using one-shot eigen decomposition (gmdLA) to extract 1 components...
   gmdLA: Using primal approach (n >= p)
   Computing factorization for matrix R
    Calculating X'QX...
    Calculating F' X'QX F...
    Performing eigen decomposition on target matrix (dim: 4)...
    (Found  1  eigenvalues > tol)
    Calculating ov (V = F^{-T} * eigenvectors)...
    Calculating ou (U)...
   Calculating explained variance...
  Constructing final object...
  GPCA finished.
   gmdLA: Using p
...[truncated]...
stopping.
  sigma is 3.00269080945555
  sigma is 3.40988208633537
  MSE no constraint: 0.2154146 
  MSE adjacency:     0.2154525 
  [ FAIL 1 | WARN 83 | SKIP 1 | PASS 1582 ]
  
  ══ Skipped tests (1) ═══════════════════════════════════════════════════════════
  • empty test (1): 'test-gplssvd_op.R:4:1'
  
  ══ Failed tests ════════════════════════════════════════════════════════════════
  ── Error ('test-gplssvd-op-large.R:99:3'): irlba backend works beyond the dense fallback threshold ──
  Error in `irlba::irlba(A0, nv = k, nu = k, work = max(3 * k, k + 1), tol = if (!is.null(svd_opts$tol)) svd_opts$tol else 1e-07, maxit = if (!is.null(svd_opts$maxitr)) svd_opts$maxitr else 1000, mult = mult_fun, fastpath = FALSE)`: starting vector near the null space
  Backtrace:
      ▆
   1. └─genpca::gplssvd_op(X, Y, k = k, svd_backend = "irlba") at test-gplssvd-op-large.R:99:3
   2.   └─irlba::irlba(...)
  
  [ FAIL 1 | WARN 83 | SKIP 1 | PASS 1582 ]
  Error:
  ! Test failures.
  Execution halted

r-devel-linux-x86_64-debian-clang

Running ‘testthat.R’ [58s/74s]
Running the tests in ‘tests/testthat.R’ failed.
Complete output:
  > library(testthat)
  > library(genpca)
  Registered S3 method overwritten by 'genpca':
    method                   from        
    transfer.cross_projector multivarious
  
  Attaching package: 'genpca'
  
  The following object is masked from 'package:base':
  
      truncate
  
  > 
  > test_check("genpca")
  Solving generalized eigenproblem C v = lambda R v...
  Preparing constraints...
  Applying pre-processing...
  Using one-shot eigen decomposition (gmdLA) to extract 1 components...
   gmdLA: Using primal approach (n >= p)
   Computing factorization for matrix R
    Calculating X'QX...
    Calculating F' X'QX F...
    Performing eigen decomposition on target matrix (dim: 4)...
    (Found  1  eigenvalues > tol)
    Calculating ov (V = F^{-T} * eigenvectors)...
    Calculating ou (U)...
   Calculating explained variance...
  Constructing final object...
  GPCA finished.
   gmdLA: Usi
...[truncated]...
stopping.
  sigma is 3.00269080945555
  sigma is 3.40988208633537
  MSE no constraint: 0.2154146 
  MSE adjacency:     0.2154525 
  [ FAIL 1 | WARN 83 | SKIP 1 | PASS 1582 ]
  
  ══ Skipped tests (1) ═══════════════════════════════════════════════════════════
  • empty test (1): 'test-gplssvd_op.R:4:1'
  
  ══ Failed tests ════════════════════════════════════════════════════════════════
  ── Error ('test-gplssvd-op-large.R:99:3'): irlba backend works beyond the dense fallback threshold ──
  Error in `irlba::irlba(A0, nv = k, nu = k, work = max(3 * k, k + 1), tol = if (!is.null(svd_opts$tol)) svd_opts$tol else 1e-07, maxit = if (!is.null(svd_opts$maxitr)) svd_opts$maxitr else 1000, mult = mult_fun, fastpath = FALSE)`: starting vector near the null space
  Backtrace:
      ▆
   1. └─genpca::gplssvd_op(X, Y, k = k, svd_backend = "irlba") at test-gplssvd-op-large.R:99:3
   2.   └─irlba::irlba(...)
  
  [ FAIL 1 | WARN 83 | SKIP 1 | PASS 1582 ]
  Error:
  ! Test failures.
  Execution halted

r-devel-linux-x86_64-debian-gcc

Running ‘testthat.R’ [36s/50s]
Running the tests in ‘tests/testthat.R’ failed.
Complete output:
  > library(testthat)
  > library(genpca)
  Registered S3 method overwritten by 'genpca':
    method                   from        
    transfer.cross_projector multivarious
  
  Attaching package: 'genpca'
  
  The following object is masked from 'package:base':
  
      truncate
  
  > 
  > test_check("genpca")
  Solving generalized eigenproblem C v = lambda R v...
  Preparing constraints...
  Applying pre-processing...
  Using one-shot eigen decomposition (gmdLA) to extract 1 components...
   gmdLA: Using primal approach (n >= p)
   Computing factorization for matrix R
    Calculating X'QX...
    Calculating F' X'QX F...
    Performing eigen decomposition on target matrix (dim: 4)...
    (Found  1  eigenvalues > tol)
    Calculating ov (V = F^{-T} * eigenvectors)...
    Calculating ou (U)...
   Calculating explained variance...
  Constructing final object...
  GPCA finished.
   gmdLA: Usi
...[truncated]...
stopping.
  sigma is 3.00269080945555
  sigma is 3.40988208633537
  MSE no constraint: 0.2154146 
  MSE adjacency:     0.2154525 
  [ FAIL 1 | WARN 83 | SKIP 1 | PASS 1582 ]
  
  ══ Skipped tests (1) ═══════════════════════════════════════════════════════════
  • empty test (1): 'test-gplssvd_op.R:4:1'
  
  ══ Failed tests ════════════════════════════════════════════════════════════════
  ── Error ('test-gplssvd-op-large.R:99:3'): irlba backend works beyond the dense fallback threshold ──
  Error in `irlba::irlba(A0, nv = k, nu = k, work = max(3 * k, k + 1), tol = if (!is.null(svd_opts$tol)) svd_opts$tol else 1e-07, maxit = if (!is.null(svd_opts$maxitr)) svd_opts$maxitr else 1000, mult = mult_fun, fastpath = FALSE)`: starting vector near the null space
  Backtrace:
      ▆
   1. └─genpca::gplssvd_op(X, Y, k = k, svd_backend = "irlba") at test-gplssvd-op-large.R:99:3
   2.   └─irlba::irlba(...)
  
  [ FAIL 1 | WARN 83 | SKIP 1 | PASS 1582 ]
  Error:
  ! Test failures.
  Execution halted

r-devel-linux-x86_64-fedora-clang

Running ‘testthat.R’ [36s/38s]
Running the tests in ‘tests/testthat.R’ failed.
Complete output:
  > library(testthat)
  > library(genpca)
  Registered S3 method overwritten by 'genpca':
    method                   from        
    transfer.cross_projector multivarious
  
  Attaching package: 'genpca'
  
  The following object is masked from 'package:base':
  
      truncate
  
  > 
  > test_check("genpca")
  Solving generalized eigenproblem C v = lambda R v...
  Preparing constraints...
  Applying pre-processing...
  Using one-shot eigen decomposition (gmdLA) to extract 1 components...
   gmdLA: Using primal approach (n >= p)
   Computing factorization for matrix R
    Calculating X'QX...
    Calculating F' X'QX F...
    Performing eigen decomposition on target matrix (dim: 4)...
    (Found  1  eigenvalues > tol)
    Calculating ov (V = F^{-T} * eigenvectors)...
    Calculating ou (U)...
   Calculating explained variance...
  Constructing final object...
  GPCA finished.
   gmdLA: Usi
...[truncated]...
stopping.
  sigma is 3.00269080945555
  sigma is 3.40988208633537
  MSE no constraint: 0.2154146 
  MSE adjacency:     0.2154525 
  [ FAIL 1 | WARN 83 | SKIP 1 | PASS 1582 ]
  
  ══ Skipped tests (1) ═══════════════════════════════════════════════════════════
  • empty test (1): 'test-gplssvd_op.R:4:1'
  
  ══ Failed tests ════════════════════════════════════════════════════════════════
  ── Error ('test-gplssvd-op-large.R:99:3'): irlba backend works beyond the dense fallback threshold ──
  Error in `irlba::irlba(A0, nv = k, nu = k, work = max(3 * k, k + 1), tol = if (!is.null(svd_opts$tol)) svd_opts$tol else 1e-07, maxit = if (!is.null(svd_opts$maxitr)) svd_opts$maxitr else 1000, mult = mult_fun, fastpath = FALSE)`: starting vector near the null space
  Backtrace:
      ▆
   1. └─genpca::gplssvd_op(X, Y, k = k, svd_backend = "irlba") at test-gplssvd-op-large.R:99:3
   2.   └─irlba::irlba(...)
  
  [ FAIL 1 | WARN 83 | SKIP 1 | PASS 1582 ]
  Error:
  ! Test failures.
  Execution halted

r-devel-linux-x86_64-fedora-gcc

Running ‘testthat.R’ [35s/35s]
Running the tests in ‘tests/testthat.R’ failed.
Complete output:
  > library(testthat)
  > library(genpca)
  Registered S3 method overwritten by 'genpca':
    method                   from        
    transfer.cross_projector multivarious
  
  Attaching package: 'genpca'
  
  The following object is masked from 'package:base':
  
      truncate
  
  > 
  > test_check("genpca")
  Solving generalized eigenproblem C v = lambda R v...
  Preparing constraints...
  Applying pre-processing...
  Using one-shot eigen decomposition (gmdLA) to extract 1 components...
   gmdLA: Using primal approach (n >= p)
   Computing factorization for matrix R
    Calculating X'QX...
    Calculating F' X'QX F...
    Performing eigen decomposition on target matrix (dim: 4)...
    (Found  1  eigenvalues > tol)
    Calculating ov (V = F^{-T} * eigenvectors)...
    Calculating ou (U)...
   Calculating explained variance...
  Constructing final object...
  GPCA finished.
   gmdLA: Usi
...[truncated]...
stopping.
  sigma is 3.00269080945555
  sigma is 3.40988208633537
  MSE no constraint: 0.2154146 
  MSE adjacency:     0.2154525 
  [ FAIL 1 | WARN 73 | SKIP 1 | PASS 1582 ]
  
  ══ Skipped tests (1) ═══════════════════════════════════════════════════════════
  • empty test (1): 'test-gplssvd_op.R:4:1'
  
  ══ Failed tests ════════════════════════════════════════════════════════════════
  ── Error ('test-gplssvd-op-large.R:99:3'): irlba backend works beyond the dense fallback threshold ──
  Error in `irlba::irlba(A0, nv = k, nu = k, work = max(3 * k, k + 1), tol = if (!is.null(svd_opts$tol)) svd_opts$tol else 1e-07, maxit = if (!is.null(svd_opts$maxitr)) svd_opts$maxitr else 1000, mult = mult_fun, fastpath = FALSE)`: starting vector near the null space
  Backtrace:
      ▆
   1. └─genpca::gplssvd_op(X, Y, k = k, svd_backend = "irlba") at test-gplssvd-op-large.R:99:3
   2.   └─irlba::irlba(...)
  
  [ FAIL 1 | WARN 73 | SKIP 1 | PASS 1582 ]
  Error:
  ! Test failures.
  Execution halted

r-oldrel-windows-x86_64

Running 'testthat.R' [71s]
Running the tests in 'tests/testthat.R' failed.
Complete output:
  > library(testthat)
  > library(genpca)
  Registered S3 method overwritten by 'genpca':
    method                   from        
    transfer.cross_projector multivarious
  
  Attaching package: 'genpca'
  
  The following object is masked from 'package:base':
  
      truncate
  
  > 
  > test_check("genpca")
  Solving generalized eigenproblem C v = lambda R v...
  Preparing constraints...
  Applying pre-processing...
  Using one-shot eigen decomposition (gmdLA) to extract 1 components...
   gmdLA: Using primal approach (n >= p)
   Computing factorization for matrix R
    Calculating X'QX...
    Calculating F' X'QX F...
    Performing eigen decomposition on target matrix (dim: 4)...
    (Found  1  eigenvalues > tol)
    Calculating ov (V = F^{-T} * eigenvectors)...
    Calculating ou (U)...
   Calculating explained variance...
  Constructing final object...
  GPCA finished.
   gmdLA: Using p
...[truncated]...
stopping.
  sigma is 3.00269080945555
  sigma is 3.40988208633537
  MSE no constraint: 0.2154146 
  MSE adjacency:     0.2154525 
  [ FAIL 1 | WARN 83 | SKIP 1 | PASS 1582 ]
  
  ══ Skipped tests (1) ═══════════════════════════════════════════════════════════
  • empty test (1): 'test-gplssvd_op.R:4:1'
  
  ══ Failed tests ════════════════════════════════════════════════════════════════
  ── Error ('test-gplssvd-op-large.R:99:3'): irlba backend works beyond the dense fallback threshold ──
  Error in `irlba::irlba(A0, nv = k, nu = k, work = max(3 * k, k + 1), tol = if (!is.null(svd_opts$tol)) svd_opts$tol else 1e-07, maxit = if (!is.null(svd_opts$maxitr)) svd_opts$maxitr else 1000, mult = mult_fun, fastpath = FALSE)`: starting vector near the null space
  Backtrace:
      ▆
   1. └─genpca::gplssvd_op(X, Y, k = k, svd_backend = "irlba") at test-gplssvd-op-large.R:99:3
   2.   └─irlba::irlba(...)
  
  [ FAIL 1 | WARN 83 | SKIP 1 | PASS 1582 ]
  Error:
  ! Test failures.
  Execution halted

r-patched-linux-x86_64

Running ‘testthat.R’ [56s/72s]
Running the tests in ‘tests/testthat.R’ failed.
Complete output:
  > library(testthat)
  > library(genpca)
  Registered S3 method overwritten by 'genpca':
    method                   from        
    transfer.cross_projector multivarious
  
  Attaching package: 'genpca'
  
  The following object is masked from 'package:base':
  
      truncate
  
  > 
  > test_check("genpca")
  Solving generalized eigenproblem C v = lambda R v...
  Preparing constraints...
  Applying pre-processing...
  Using one-shot eigen decomposition (gmdLA) to extract 1 components...
   gmdLA: Using primal approach (n >= p)
   Computing factorization for matrix R
    Calculating X'QX...
    Calculating F' X'QX F...
    Performing eigen decomposition on target matrix (dim: 4)...
    (Found  1  eigenvalues > tol)
    Calculating ov (V = F^{-T} * eigenvectors)...
    Calculating ou (U)...
   Calculating explained variance...
  Constructing final object...
  GPCA finished.
   gmdLA: Usi
...[truncated]...
stopping.
  sigma is 3.00269080945555
  sigma is 3.40988208633537
  MSE no constraint: 0.2154146 
  MSE adjacency:     0.2154525 
  [ FAIL 1 | WARN 83 | SKIP 1 | PASS 1582 ]
  
  ══ Skipped tests (1) ═══════════════════════════════════════════════════════════
  • empty test (1): 'test-gplssvd_op.R:4:1'
  
  ══ Failed tests ════════════════════════════════════════════════════════════════
  ── Error ('test-gplssvd-op-large.R:99:3'): irlba backend works beyond the dense fallback threshold ──
  Error in `irlba::irlba(A0, nv = k, nu = k, work = max(3 * k, k + 1), tol = if (!is.null(svd_opts$tol)) svd_opts$tol else 1e-07, maxit = if (!is.null(svd_opts$maxitr)) svd_opts$maxitr else 1000, mult = mult_fun, fastpath = FALSE)`: starting vector near the null space
  Backtrace:
      ▆
   1. └─genpca::gplssvd_op(X, Y, k = k, svd_backend = "irlba") at test-gplssvd-op-large.R:99:3
   2.   └─irlba::irlba(...)
  
  [ FAIL 1 | WARN 83 | SKIP 1 | PASS 1582 ]
  Error:
  ! Test failures.
  Execution halted

r-release-linux-x86_64

Running ‘testthat.R’ [56s/66s]
Running the tests in ‘tests/testthat.R’ failed.
Complete output:
  > library(testthat)
  > library(genpca)
  Registered S3 method overwritten by 'genpca':
    method                   from        
    transfer.cross_projector multivarious
  
  Attaching package: 'genpca'
  
  The following object is masked from 'package:base':
  
      truncate
  
  > 
  > test_check("genpca")
  Solving generalized eigenproblem C v = lambda R v...
  Preparing constraints...
  Applying pre-processing...
  Using one-shot eigen decomposition (gmdLA) to extract 1 components...
   gmdLA: Using primal approach (n >= p)
   Computing factorization for matrix R
    Calculating X'QX...
    Calculating F' X'QX F...
    Performing eigen decomposition on target matrix (dim: 4)...
    (Found  1  eigenvalues > tol)
    Calculating ov (V = F^{-T} * eigenvectors)...
    Calculating ou (U)...
   Calculating explained variance...
  Constructing final object...
  GPCA finished.
   gmdLA: Usi
...[truncated]...
stopping.
  sigma is 3.00269080945555
  sigma is 3.40988208633537
  MSE no constraint: 0.2154146 
  MSE adjacency:     0.2154525 
  [ FAIL 1 | WARN 83 | SKIP 1 | PASS 1582 ]
  
  ══ Skipped tests (1) ═══════════════════════════════════════════════════════════
  • empty test (1): 'test-gplssvd_op.R:4:1'
  
  ══ Failed tests ════════════════════════════════════════════════════════════════
  ── Error ('test-gplssvd-op-large.R:99:3'): irlba backend works beyond the dense fallback threshold ──
  Error in `irlba::irlba(A0, nv = k, nu = k, work = max(3 * k, k + 1), tol = if (!is.null(svd_opts$tol)) svd_opts$tol else 1e-07, maxit = if (!is.null(svd_opts$maxitr)) svd_opts$maxitr else 1000, mult = mult_fun, fastpath = FALSE)`: starting vector near the null space
  Backtrace:
      ▆
   1. └─genpca::gplssvd_op(X, Y, k = k, svd_backend = "irlba") at test-gplssvd-op-large.R:99:3
   2.   └─irlba::irlba(...)
  
  [ FAIL 1 | WARN 83 | SKIP 1 | PASS 1582 ]
  Error:
  ! Test failures.
  Execution halted

CRAN check page ↗

Slowest check: 6.5 min · r-oldrel-windows-x86_64
Status changes
  • ERROR4 OK, 9 ERRORNow
  • ERROR11 OK, 2 ERROR2026-10-06
  • OK7 OK2026-09-16
Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.2.1
READMEYes · 1,017 wordsVignettesYes · 6 · evaluation depends on the environmentNEWSYes · 100% structured · mentions 0.2.1Citation fileNoWebsiteYes · pkgdown
Help pages
44 (26 internal)includes a package overview page
Examples that run
100%15 run in a plain check (3 of them under a condition)
Exported functions with examples
86%
Documented parameters
90%
Return-value docs
93%
Help pages citing references
20%
Vignettes (6)
How these are measured

Downloads

572
CRAN downloads in the past year
Rank #22,361 · ~2/day · ~48/mo
Daily download trend is not available in this view yet.
53130 days
57290 days
5721 year
Compare downloads with other packages →
Also on24 r2u2 autocran
How downloads are counted

Repository

bbuchsbaum/genpca ↗Account: bbuchsbaum
0Stars
0Forks
2Open issues
3Open PRs
0Releases
Last activity 2026-10-05 · Default branch at 0.2.2, ahead of CRAN 0.2.1 (checked 2026-10-11)
Responsiveness
How these are sampled
PRs merged (all time)
100%
Median days to close, 50 most recently updated closed issues
not measured
Median days to close, 50 most recently updated closed PRs
not measured

Issues over time

2026-09-16 · 12026-09-22 · 2
How these are measured
PracticesBeta

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

Checks run against github.com/bbuchsbaum/genpca on 2026-10-11.

Continuous integration (2)
GitHub ActionsR CMD check workflow

The R CMD check workflow runs on Linux

Docs source (3)
pkgdown

GitHub Pages site last deployed 2026-09-16 · The repository has a site deploy workflow

pkgdown site last built 2026-09-16

Coverage (1)
Coverage reporting (Codecov)
CRAN release process (1)
cran-comments.md
Show all practicesHide 1 practice
Lint, format, editor (2)
lintrRStudio project
How this is detected·Detection ruleset v3 (2026-09-26)
AI coding toolsBeta

This repository shows signs of AI coding tools.

  • Claude Codefirst seen 2025-08-22
    Named in .Rbuildignore: .claude, CLAUDE.md
    Named in .gitignore: CLAUDE.md
    Commits: at least 33 crediting it in the message
Models named in its commits
  • Claude Opus 512 commits · Aug 2026
  • Claude Fable 57 commits · Aug 2026
  • Claude Opus 4.73 commits · Apr 2026
  • Claude Opus 4.61 commit · Feb 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
20 external dependencies (excludes base and recommended)

Installing genpca adds 21 packages (14 with compiled code, 13 MB of source tarballs). Heaviest: eigencore 2.7 MB, Rcpp 1.8 MB, RcppEigen 1.7 MB.

Depends (1)
R >= 4.1.0
Imports (8)
RcppeigencoreFNNMatrixmultivarious (>= 0.3.0)assertthatmethodsdigest
LinkingTo (3)
RcppRcppArmadilloRcppEigen
Suggests (11)
testthatadjoinirlbamatrixStatsclueknitrrmarkdownggplot2albersdownraggsystemfonts
Enhances (0)
none
Dependency license breakdown →
Reverse dependencies
0direct
0indirect

Nothing depends on this yet.

How these are counted

Code & Tests

People & History

People (1)
Brad Buchsbaum
Author, Maintainer since 0.2.0 (2026), Copyright holder
Releases (2)

Pick two releases to compare their code metrics.

  • 0.2.1Latest
    record
    2026-09-16 · current release · diff ↗
  • 0.2.0
    record
    2026-09-15
  • R
    R 4.6.0 released · 2026-04-24

Package metadata

First published
2026-09-15
Total releases
2 / 1 yrs
License
MIT + file LICENSE OSI
Minimum R
≥ 4.1.0
Download size
1.2 MB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("genpca")
Buchsbaum, B. (2026). genpca: Generalized Principal Component Analysis (Version 0.2.1) [Computer software]. https://doi.org/10.32614/CRAN.package.genpca

This package has no citation file, so citation() returns this entry built from DESCRIPTION.

Cite the R Observatory

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

APA

Balamuta, J. J. (2026). R Observatory: Metrics for genpca version 0.2.1 [Data set]. HJJB, LLC. Data release v2026-10-17. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-17, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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