[kgryte]

Resolves a part of #11352.

Description

What is the purpose of this pull request?

This pull request:

• migrates the tests for stats/base/dists/pareto-type1/mode from relative tolerance testing to ULP difference testing.

Specifically, in both test/test.js and test/test.native.js, the delta/tol computation and the t.ok( delta <= tol, ... ) assertion are replaced by

t.strictEqual( isAlmostSameValue( y, expected[ i ], 0 ), true, 'returns expected value' );

along with adding the @stdlib/assert/is-almost-same-value require and removing the now unused @stdlib/math/base/special/abs and @stdlib/constants/float64/eps requires.

Final ULP constant: 0 (for both test/test.js and test/test.native.js).

The bound was tightened empirically. Starting from a high value and lowering it, the measured maximum ULP difference across the full fixture set (1000 cases in test/fixtures/julia/data.json) is 0, i.e. both the JavaScript and native implementations reproduce the Julia reference values exactly, so 0 is the minimum required ULP value. The previous relative tolerance was 1.0 * EPS.

Related Issues

Does this pull request have any related issues?

This pull request has the following related issues:

• [RFC]: Migrate math/base/special packages from relative tolerance testing to ULP difference testing (tracking issue) #11352

Questions

Any questions for reviewers of this pull request?

No.

Other

Any other information relevant to this pull request? This may include screenshots, references, and/or implementation notes.

Verification performed locally:

• make test TESTS_FILTER=".*/stats/base/dists/pareto-type1/mode/.*" — 1014 passing / 0 failing for test/test.js and 1014 passing / 0 failing for test/test.native.js (the native add-on was built locally so that test/test.native.js actually ran rather than being skipped).
• The suite was run twice at the final ULP value to confirm the result is deterministic.
• make lint-javascript-tests TESTS_FILTER=".*/stats/base/dists/pareto-type1/mode/.*" — clean.
• Only the two test files are changed; no source, documentation, or fixture files were touched.

Checklist

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

• Read, understood, and followed the contributing guidelines.

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

If you answered "yes" to using AI assistance, please provide a short disclosure indicating how you used AI assistance. This helps reviewers determine how much scrutiny to apply when reviewing your contribution. Example disclosures: "This PR was written primarily by Claude Code." or "I consulted ChatGPT to understand the codebase, but the proposed changes were fully authored manually by myself.".

This PR was authored by Claude Code, running unattended as a scheduled task. It studied the conventions established by previously merged conversions in this family (e.g. stats/base/dists/pareto-type1/kurtosis, stats/base/dists/beta/entropy), applied the same idiom, and determined the minimum ULP bound by measurement against the fixture set. Opened as a draft for human review.

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@stdlib-js/reviewers

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Generated by Claude Code

[stdlib-bot]

Coverage Report

Package	Statements	Branches	Functions	Lines
stats/base/dists/pareto-type1/mode	$\\color{green}195/195$ $\\color{green}+100.00\\%$	$\\color{green}10/10$ $\\color{green}+100.00\\%$	$\\color{green}2/2$ $\\color{green}+100.00\\%$	$\\color{green}195/195$ $\\color{green}+100.00\\%$

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