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feat: add C implementation for stats/base/dists/betaprime/quantile - #15388

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feat: add C implementation for stats/base/dists/betaprime/quantile#15388
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@Planeshifter Planeshifter commented Sep 21, 2026 •
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Progresses stdlib-js/metr-issue-tracker#1235.

Description

What is the purpose of this pull request?

This pull request:

  • adds a C/native implementation for @stdlib/stats/base/dists/betaprime/quantile

The C implementation delegates to @stdlib/math/base/special/betaincinv, mirroring the JavaScript implementation, and preserves parameter validation (NaN and nonpositive shape parameters), the x / (1 - x) transformation and its endpoint behavior (p = 0 yields 0 and p = 1 yields +infinity), and NaN behavior for out-of-domain probabilities.

Related Issues

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This pull request has the following related issues:

Questions

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No.

Other

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No.

Checklist

Please ensure the following tasks are completed before submitting this pull request.

AI Assistance

When authoring the changes proposed in this PR, did you use any kind of AI assistance?

  • Yes
  • No

If you answered "yes" above, how did you use AI assistance?

  • Code generation (e.g., when writing an implementation or fixing a bug)
  • Test/benchmark generation
  • Documentation (including examples)
  • Research and understanding

Disclosure

This PR was written primarily by Claude Code, with human review and verification of numerical parity against the JavaScript implementation.

@stdlib-js/reviewers

@Planeshifter
feat: add C implementation for stats/base/dists/betaprime/quantile
7c552c5 
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

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---
@stdlib-bot stdlib-bot added the Statistics Issue or pull request related to statistical functionality. label Sep 21, 2026
@stdlib-bot

stdlib-bot commented Sep 21, 2026 •
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Coverage Report

Package Statements Branches Functions Lines
stats/base/dists/betaprime/quantile $\\color{green}318/318$
$\\color{green}+0.00\\%$ 		$\\color{green}25/25$
$\\color{green}+0.00\\%$ 		$\\color{green}4/4$
$\\color{green}+0.00\\%$ 		$\\color{green}318/318$
$\\color{green}+0.00\\%$

The above coverage report was generated for the changes in this PR.

@Planeshifter
style: fix variable declaration order
50d553a 
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

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    status: passed
  - task: lint_editorconfig
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  - task: lint_markdown_pkg_readmes
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  - task: lint_markdown
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  - task: lint_javascript_tests
    status: na
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  - task: lint_python
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---
@Planeshifter
Planeshifter marked this pull request as ready for review September 21, 2026 05:48
@stdlib-bot stdlib-bot added the Needs Review A pull request which needs code review. label Sep 21, 2026
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