pandas#

  • Series: lecture-python-programming

  • File: lectures/pandas.md

  • Audit date: 2026-05-28

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

  • Overall score: 7.8 / 10

  • Priority: LOW

Score breakdown#

Category

Score

One-line note

Writing

7/10

Heading Title Case throughout the H3 layer.

Math

N/A

No math content.

Code

8/10

!pip install --upgrade wbgapi and !pip install --upgrade yfinance at top with hide-output (qe-code-003); PEP8 clean; one import yfinance deferred to inside an exercise (line 637) — borderline qe-code-003 nit (used as a per-exercise import for clarity, not a runtime install).

JAX

out of scope

—

Figures

7/10

Two figsize=(10,8) (line 726), figsize=(10, 8) (line 797); one ax.set_title(index_name) (line 803) is inside solution-start/solution-end per qe-fig-003 exception; two static {image} for example plot screenshots (lines 685, 752) used inside exercises per qe-fig-011; one static {figure} (line 46) for pandas-popularity screenshot (qe-fig-002 acceptable for SO trends).

References

N/A

No citations.

Links

8/10

Uses external doc links for wbgapi, yfinance, FRED — appropriate; no improper cross-series URLs. The [QuantEcon.py](https://github.com/...) etc. are external repos, not lectures — not a violation.

Admonitions

9/10

Two {exercise-start} / {solution-start} pairs gated; :class: dropdown on solutions; :label: cross-linked; {note} admonition used.

Issues#

Critical#

None found.

High severity#

  • [qe-writing-006] — Section headings use Title Case rather than sentence case. Examples: line 144 ## DataFrames, line 181 ### Select Data by Position, line 209 ### Select Data by Conditions, line 294 ### Apply Method, line 347 ### Make Changes in DataFrames, line 427 ### Standardization and Visualization, line 495 ## On-Line Data Sources, line 514 ### Accessing Data with requests, line 593 ### Using wbgapi and yfinance to Access Data, line 627 ## Exercises. Count: 10 occurrences.

Medium severity#

  • [qe-fig-001] — Two explicit figsize=(10, 8) in code-cells inside solution blocks (lines 726, 797). Inside solution-start/solution-end qe-fig-003 has an exception but qe-fig-001 does not — these are weak style nits.

  • [qe-fig-005] — Code-generated plots (e.g., bar plots at lines 473, 489, 583) lack name: metadata.

Low severity#

  • [qe-writing-004] — “On-Line” capitalized at line 495 — modern usage prefers “online”.

  • [qe-code-003] — import yfinance as yf placed inside an exercise body (line 637); pedagogically motivated (only needed for that exercise) but the install at the top makes it available globally.

Strengths#

  • Lecture title “Pandas” follows qe-writing-006.

  • Some headings already use sentence case (e.g., “Series”).

  • Clean code-cell usage, inline backtick code, one-sentence paragraphs.

  • Non-Anaconda wbgapi and yfinance correctly installed at top with hide-output per qe-code-003.

  • All axis labels are lowercase or use proper-noun acronyms (e.g., ‘GDP per capita’, ‘%’) per qe-fig-006.

  • The one ax.set_title(...) use is inside solution-start/solution-end so qualifies for the qe-fig-003 exception.

  • Exercise/solution pairs use gated syntax per qe-admon-001 with :class: dropdown per qe-admon-002 and :label: per qe-admon-005.