perm_income#

  • Series: lecture-python.myst

  • File: lectures/perm_income.md

  • Audit date: 2026-05-28

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

  • Overall score: 8.8 / 10

  • Priority: NONE

Score breakdown#

Category

Score

One-line note

Writing

6/10

Section/subsection headings use Title Case rather than sentence case.

Math

10/10

No math issues.

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 3 places — usually unnecessary.

References

9/10

Citation style follows conventions.

Links

10/10

Link style follows conventions.

Admonitions

10/10

Exercise/solution structure clean.

Issues#

Critical#

None found.

High severity#

  • [qe-writing-006] — Section/subsection headings use Title Case rather than sentence case. Examples: line 56, line 107, line 186. Count: 15 headings affected.

Medium severity#

  • [qe-code-002] — Spelled-out Greek (alpha/beta/etc.) used predominantly in code; mixed with unicode forms (word=6, uni=4).

Low severity#

  • [qe-fig-001] — figsize= set in 3 places — usually unnecessary.

  • [qe-fig-003] — ax.set_title() used once outside exercise blocks (line 833).

  • [qe-fig-005] — Figures lack descriptive name: fields for cross-referencing (7 plot calls, 0 named).

  • [qe-fig-006] — One capitalised axis label (line 501).

  • [qe-fig-008] — lw=2 missing on most .plot() calls (1/7).

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.

  • Cross-series links use {doc} intersphinx form.