exchangeable#

  • Series: lecture-python.myst

  • File: lectures/exchangeable.md

  • Audit date: 2026-05-28

  • Categories audited: writing, math, code, figures, references, links, admonitions

  • Overall score: 8.7 / 10

  • Priority: NONE

Score breakdown#

Category

Score

One-line note

Writing

7/10

Many section headings use Title Case rather than sentence case.

Math

9.5/10

Bare E[...] or \Pr(...) used in place of \mathbb{E}/\mathbb{P}.

Code

8.5/10

Spelled-out Greek (alpha/beta/etc.) used predominantly in code; mixed with unicode forms…

JAX

out of scope

not a JAX lecture

Figures

8/10

figsize= set in 1 place(s).

References

9/10

Citation style follows conventions.

Links

9/10

1 direct URL to another QuantEcon series — should use {doc} link.

Admonitions

10/10

Exercise/solution structure clean.

Issues#

Critical#

None found.

High severity#

  • [qe-writing-006] — Many section headings use Title Case rather than sentence case. Examples: line 81, line 110, line 156. Count: 8.

Medium severity#

  • [qe-code-002] — Spelled-out Greek (alpha/beta/etc.) used predominantly in code; mixed with unicode forms (word=9, uni=2).

  • [qe-link-002] — 1 direct URL to another QuantEcon series — should use {doc} link. Example: line 551.

Low severity#

  • [qe-math-010 (proposed)] — Bare E[...] or \Pr(...) used in place of \mathbb{E}/\mathbb{P}. Example: line 697.

  • [qe-fig-001] — figsize= set in 1 place(s).

  • [qe-fig-003] — ax.set_title() used once outside exercise blocks (line 654).

  • [qe-fig-005] — Figures lack descriptive name: fields for cross-referencing (4 plot calls, 0 named).

  • [qe-fig-008] — lw=2 parameter missing from 4 .plot() calls.

Strengths#

  • Uses “IID” or no IID terminology.

  • Transpose notation uses \top consistently (no prime/^T).

  • No bold vectors/matrices.

  • Normal distribution written as plain N.

  • aligned (not align) used in $$ math.

  • Axis labels lowercase.