style: align outliers in stats/base/dists/gamma with namespace conventions

[Planeshifter]

Description

Aligning outliers in stats/base/dists/gamma with namespace majority structural patterns (random namespace pick, seed 20260430).

Namespace summary

• Member count: 14 (cdf, ctor, entropy, kurtosis, logcdf, logpdf, mean, mgf, mode, pdf, quantile, skewness, stdev, variance)
• Features analyzed: file tree, package.json shape, manifest.json shape, README section structure (set + sequence), test/benchmark/example file naming, public signature, return kind, validation prologue, error construction, JSDoc shape, @stdlib/* dependencies.
• Features with clear majority (≥75%): README C APIs heading levels (78.6%), README <section class="c"> wrapper (78.6%), ## Usage/## Examples at level 2 (100%), gypfile/manifest.json/lib/native.js presence among packages with native impl (12/14, 85.7%), all standard top-level package.json keys (100%), JSDoc paramTags and returnsTag presence (100%), hasExample JSDoc (100%), returnKind: value (100%), validationPrologue: [] (NaN-on-invalid pattern, 100%).
• Features without clear majority (excluded): README section ordering (Examples vs C APIs precedence) — only 10/14 (71.4%) follow the JS-Examples-before-C-APIs ordering; lib/factory.js presence (6/14, 42.9%); test.factory.js presence (6/14, 42.9%). Below the 75% threshold, so excluded.

stats/base/dists/gamma/logcdf

Promotes the C APIs heading from ### to ## and the nested Usage heading from #### to ###, and wraps C APIs content in a dedicated <section class="c"> element closed outside <section class="usage"> — matching the pattern held by 11/14 (78.6%) of packages in the namespace. The prior structure had C APIs content swallowed inside the JS usage section with no own wrapper, diverging from the dominant convention.

Related Issues

None.

Questions

None.

Other

Validation

• Structural feature extraction: file-tree, package.json/manifest.json keysets, README headings, test/benchmark/example filenames pulled mechanically across all 14 members.
• Semantic feature extraction via per-package agents: parallel sonnet agents extracted publicSignature, returnKind, validationPrologue, errorConstruction, jsdocShape, and @stdlib/* dependencies from each package's lib/.
• Three-agent drift validation: an opus semantic-review agent, an opus cross-reference agent, and a sonnet structural-review agent each independently inspected the proposed logcdf correction. All three returned confirmed-drift; cross-reference confirmed no test, example, or external markdown anchor depends on the prior README structure.

Deliberately excluded

• Native-implementation files (binding.gyp, manifest.json, lib/native.js, src/*, include/*.h, examples/c/*, benchmark/c/*, test.native.js, test/fixtures/julia/*) missing in ctor and quantile — both legitimately lack a native C implementation.
• README section ordering drift — JS-Examples-before-C-APIs is at 71.4%, below the 75% majority threshold; cdf and logcdf retain their existing Usage→C APIs→Examples ordering.
• lib/factory.js / test.factory.js asymmetry — present only in packages whose API supports a partial-application factory; not a namespace convention.

Checklist

• 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

This PR was authored by Claude Code as part of an automated cross-package drift-detection routine: a randomly selected namespace's packages are compared by structural and semantic features, packages diverging from the namespace majority on features with ≥75% conformance are flagged, and three independent validation agents gate each correction. Only the logcdf README structural realignment survived filtering for this run; all other potential drift was excluded as either intentional (no native impl) or below the majority threshold.

---

@stdlib-js/reviewers

---

Generated by Claude Code

[stdlib-bot]

Coverage Report

Package	Statements	Branches	Functions	Lines
stats/base/dists/gamma/logcdf	$\color{green}289/289$ $\color{green}+0.00%$	$\color{green}19/19$ $\color{green}+0.00%$	$\color{green}4/4$ $\color{green}+0.00%$	$\color{green}289/289$ $\color{green}+0.00%$

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