🌐 [translation-sync] [likelihood_var.md] Update np.random → Generator API

[mmcky]

Automated Translation Sync

This PR contains automated translations from QuantEcon/lecture-python.myst.

Source PR

#995 - [likelihood_var.md] Update np.random → Generator API

Files Updated

• ✏️ lectures/likelihood_var.md
• ✏️ .translate/state/likelihood_var.md.yml

Details

• Source Language: en
• Target Language: zh-cn
• Model: claude-sonnet-5

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This PR was created automatically by the translation action.

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✅ Translation Quality Review

Verdict: PASS | Model: claude-sonnet-5 | Date: 2026-07-31
Routing: editor — 2 minor finding(s) in gating categories (accuracy/terminology/syntax/diff-check/other); accuracy 8 below floor 9; terminology 8 below floor 9; formatting 7 below floor 8

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📝 Translation Quality

Criterion	Score
Accuracy	8/10
Fluency	8/10
Terminology	8/10
Formatting	7/10
Overall	7.9/10

Summary: The translation of the changed sections is accurate and fluent overall, correctly preserving mathematical content, code structure, and technical terminology. Minor issues include a slight loss of nuance in the 'connect to' phrasing in the Application section, an inconsistency in how the recurring 'nature = f/g' plot title phrase is handled (left untranslated in earlier examples but translated in the Samuelson section), and unexplained added font-configuration code not present in the source. No syntax errors were found in code blocks, math blocks, or MyST directives. Mathematical notation and LaTeX equations are preserved accurately across all changed sections Code comments are consistently and naturally translated into Chinese while preserving code functionality Technical terminology such as '似然比过程', '对数似然', '边际消费倾向', '加速系数' is used correctly and consistently with the glossary

Suggestions:

• [minor · accuracy] lectures/likelihood_var.md — ## Application: Samuelson multiplier-accelerator: The English source says 'Now let's connect to the Samuelson multiplier-accelerator model.' but the translation says '现在让我们来看萨缪尔森乘数-加速器模型' (Now let's look at...), losing the sense of 'connect' which is important since this section links back to the VAR likelihood framework. → 现在让我们将其与萨缪尔森乘数-加速器模型联系起来。
• [minor · terminology] lectures/likelihood_var.md — Neyman-Pearson decision rule paragraph: There should be a space between the Chinese text and the inline MyST directive {doc}likelihood_ratio_process, per the language-specific policy. Currently it reads '让我们应用 {doc}likelihood_ratio_process 中描述的Neyman-Pearson频率主义决策规则' which already has spaces around the directive, but 'Neyman-Pearson频率主义决策规则' lacks a space between the Latin term 'Neyman-Pearson' and the Chinese characters, which is … → 让我们应用 {doc}likelihood_ratio_process 中描述的 Neyman-Pearson 频率主义决策规则
• [minor · fluency] lectures/likelihood_var.md — ## Overview - library import comment: The translation added extra font-configuration code (FONTPATH, mpl.font_manager, plt.rcParams) not present in the English source's code cell. While this may be an intentional localization for CJK font rendering in the notebook, it constitutes added content beyond translation scope and should be flagged for consistency review. → Confirm this font-loading addition is part of the standard translation pipeline convention for all lectures; if so, no action needed, otherwise remove to match source exactly.
• [nit · terminology] lectures/likelihood_var.md — figure titles: '真实模型 = f' vs earlier 'nature = f': Earlier in the document (Examples 1 and 2), 'nature = f' in plot titles was left untranslated as 'nature = f'/'nature = g', but in the Samuelson application section the equivalent phrase was translated to '真实模型 = f'/'真实模型 = g'. This is an inconsistency in how the same recurring phrase is handled across sections. → Use a consistent treatment throughout, e.g., either keep 'nature = f' untranslated everywhere or translate consistently as '真实模型 = f' everywhere.

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🔍 Diff Quality

Check	Status
Scope Correct	✅
Position Correct	✅
Structure Preserved	✅
Heading-map Correct	✅
Overall	10/10

Summary: The rng-related changes (import, rng = np.random.default_rng(), and function signature updates for simulate_var/simulate_samuelson and their call sites) were correctly and positionally mirrored in the target document, with structure and heading metadata unaffected and correctly preserved.

Issues:

• Minor stylistic diff: target changed comma style from '，' to ',' inconsistently in the final paragraphs (e.g. '在左图中,数据由...' became '在左图中，数据由...'), which is unrelated to the rng sync but is a harmless side-edit within the same modified file/section.

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This review was generated automatically by action-translation review mode.

[Copilot]

Pull request overview

This automated translation-sync PR updates the Chinese lecture likelihood_var.md to use NumPy’s Generator API (via np.random.default_rng()) instead of legacy np.random.* calls, aligning the translated content with the upstream source PR.

Changes:

• Introduced a module-level rng = np.random.default_rng() and replaced np.random.randn with rng.standard_normal.
• Updated simulate_var / simulate_samuelson to accept an RNG and wired all call sites accordingly (including SciPy mvn.rvs(..., random_state=rng)).
• Updated translation sync state metadata (source-sha, synced-at, mode, tool-version).

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
lectures/likelihood_var.md	Switches simulation randomness to the Generator API and threads rng through simulation helpers and call sites.
.translate/state/likelihood_var.md.yml	Updates translation-sync bookkeeping to reflect the new upstream source SHA and sync run.

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