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OHPL

ANALYTICS
Velocity0.0

Ordered Homogeneity Pursuit Lasso for Group Variable Selection

github.com/nanxstats/OHPL ↗

A 2017 chemometrics method frozen in place, visited only when CRAN changes its documentation rules.

chemometricsvariable-selectionspectroscopyarchival-maintenancelasso
◆Current state
OHPL implements ordered homogeneity pursuit lasso, a variable selection method for high-dimensional spectroscopic data that groups correlated predictors before applying a lasso. The functional package was complete by 1.2 in 2017, when prediction, performance evaluation and simulated data generation functions were added. Every release since has touched documentation and packaging only.
◆Where it's heading
This is a published-method package in the archival phase: the algorithm is fixed, the paper is cited, and the maintainer keeps it installable. The releases read as a timeline of R packaging conventions rather than of the method — tidyverse code style in 2019, roxygen2 Markdown and bibentry() in 2024, Rd HTML validation in 2026. Gaps of two to five years between releases are normal here.
◆Prediction
Expect the next release whenever CRAN introduces another documentation or packaging check; there is no indication the method itself will be extended.

◆Recent moves

  1. 4mo ago

    Rd documentation HTML validation fixed

    Fixes HTML validation issues in the Rd documentation, the sole content of a release arriving nearly two years after the previous one. Exactly the kind of CRAN-driven touch that keeps this package's clock ticking.

    View source ↗
  2. 2y ago

    Documentation modernized to current R conventions

    Reformats roxygen2 documentation to Markdown, replaces citEntry() with bibentry() in the citation file, and adopts the _PACKAGE sentinel for the help topic. Three separate housekeeping items, none of which touch the method.

    View source ↗
  3. 7y ago

    Code restyled and repository links updated

    Switches to tidyverse code style and updates GitHub links after a handle change. A cosmetic release in the middle of a five-year functional silence.

    View source ↗
  4. 9y ago

    Citation information and documentation site updated

    Updates the citation details and the documentation website, three weeks after the last functional release. The point where the package settles into maintenance.

    View source ↗
  5. 9y ago

    Prediction and evaluation functions complete the package

    Adds prediction, performance evaluation and simulated data generation functions, turning the variable selection routine into a usable end-to-end workflow. This is the last release in which the package's capability changed at all.

    View source ↗