tcv

0.1.0

Determining the Number of Factors in Poisson Factor Models via Thinning Cross-Validation

0packages depend

1.7Kdownloads / year

–test coverage

13/13checks pass

Overview

About

Maintained by Zhijing WangFirst published 2025-09-231 releasesCRAN page ↗GitHub ↗

Implements methods for selecting the number of factors in Poisson factor models, with a primary focus on Thinning Cross-Validation (TCV). The TCV method is based on the 'data thinning' technique, which probabilistically partitions each count observation into training and test sets while preserving the underlying factor structure. The Poisson factor model is then fit on the training set, and model selection is performed by comparing predictive performance on the test set. This toolkit is designed for researchers working with high-dimensional count data in fields such as genomics, text mining, and social sciences. The data thinning methodology is detailed in Dharamshi et al. (2025) <doi:10.1080/01621459.2024.2353948> and Wang et al. (2025) <doi:10.1080/01621459.2025.2546577>.

Install

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

install.packages("tcv")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

pak::pak("Wangzhijingwzj/tcv")

Development version from Wangzhijingwzj/tcv. Requires the pak package.

Release

# one-time r2u setup for Ubuntu (noble)

curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash

# then install

sudo apt install r-cran-tcv

Fast Ubuntu binaries via r2u (no compilation). Run the setup once per machine.

bspm (used by r2u) also needs make: sudo apt install make

sudo dnf copr enable iucar/cran

sudo dnf install R-CRAN-tcv

RPMs from the iucar/cran COPR, rebuilt from CRAN.

sudo zypper install R-tcv

RPMs auto-built from CRAN on openSUSE OBS.

Health

CRAN checks

13OK

Code health

None

Tests · ratio 0.00

not tracked

Coverage

100%

Documentation · exports

None

Vignettes

README

Dependencies · direct

Check history

OK2026-04-22
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-04-18
13 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Downloads

1.7K

CRAN downloads in the past year

Rank #22,399 · ~5/day · ~143/mo

23530 days

52990 days

1.7K1 year

Also on319 r2u9 autocran

Source & community

GitHub ↗

Repository stars, issues, and contributor activity are not tracked yet.

Dependencies

Declared dependencies

8 external dependencies (excludes base and recommended)

Depends (0)

none

Imports (4)

stats baseGFM countsplit irlba

LinkingTo (2)

Rcpp RcppArmadillo

Suggests (3)

knitr rmarkdown testthat

Enhances (0)

none

Reverse dependencies

0direct

–indirect (not tracked)

Nothing depends on this yet.

Code

482Lines of code

3Exported functions

Code & tests

Open call graph →

Code intelligence has not been computed for this package yet.

People & History

People (3)

Maintainer (1)

Zhijing Wang

Author, Maintainer

Authors (2)

Heng Peng

Author

Peirong Xu

Author

Release timeline

1 releases. Pick two to compare their code metrics; R releases are shown for context.

R
R 4.6.0 released · 2026-04-24
0.1.0Latest
2026-03-10 · current release

Package metadata

First published: 2025-09-23
Total releases: 1 / 1 yrs
License: GPL (>= 3) OSI
Download size: not tracked yet
Installed size: not tracked yet
With dependencies: not tracked yet