commod_price#

  • Series: lecture-python-intro

  • File: lectures/commod_price.md

  • Audit date: 2026-05-28

  • Categories audited: writing, math, code, figures, references, links, admonitions (JAX out of scope)

  • Overall score: 8.7 / 10

  • Priority: NONE

Score breakdown#

Category

Score

One-line note

Writing

9/10

H1 Title Case, H2/H3 sentence case, one-sentence paragraphs throughout.

Math

8/10

Uses \mathbb{E} and \mathbb R_+ correctly; minor formatting issue with \mathbb{E}_t \, p_{t+1}.

Code

9/10

!pip install yfinance at top with hide-output (qe-code-003 OK); standard imports otherwise; alpha= only as matplotlib kwarg.

JAX

out of scope

—

Figures

9/10

No ax.set_title/figsize overrides; clean matplotlib usage; no figures use {figure} directive (just plt.show()).

References

8/10

All 6 {cite} usages appear to be end-of-sentence parenthetical-style — no clear in-text misuse.

Links

N/A

no cross-series links

Admonitions

N/A

no exercises / solutions

Issues#

Critical#

None found.

High severity#

None found.

Medium severity#

None found.

Low severity#

  • W7 — “no-arbitrage” appears in quotes inline (line 169) — minor stylistic; “ansatz” parenthetical at line 222 fine.

  • [qe-fig-005] — No figures have a :name: for cross-referencing.

Strengths#

  • Clean one-sentence paragraphs throughout.

  • Correct use of \mathbb{E}, \mathbb R_+.

  • Sequence \{ Z_t \}_{t \geq 1} is correct M6 form.

  • “IID” written correctly in text (line 136).

  • All section headings comply with W3.

  • !pip install yfinance placed at top with :tags: [hide-output] (qe-code-003 OK).

  • No matplotlib title / figsize / spines violations.