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Notebook Accessibility Report

Generated on: 2026-02-10 01:50:34

Summary

  • Total Notebooks Checked: 61
  • Total Issues Found: 364
    • 🔴 Critical: 51
    • 🟡 Warning: 98
    • 🔵 Info: 215

Issue Categories

  • Critical: Issues that significantly impact accessibility (e.g., missing alt text)
  • Warning: Issues that may hinder accessibility (e.g., poor heading hierarchy)
  • Info: Suggestions for improvement (e.g., long text blocks)

🔴 Notebooks with Critical Issues

lab/lab01/lab01.ipynb

Critical Issues: 1

lab/lab02/lab02.ipynb

Critical Issues: 1

lab/lab03/lab03.ipynb

Critical Issues: 1

lab/lab04/lab04.ipynb

Critical Issues: 1

lab/lab05/lab05.ipynb

Critical Issues: 1

lab/lab06/lab06.ipynb

Critical Issues: 1

lab/lab07/lab07.ipynb

Critical Issues: 1

lab/lab08/lab08.ipynb

Critical Issues: 2

  • Missing Alt Text (Cell 1): HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...
    • Suggestion: Add alt="description" to the img tag
  • Missing Alt Text (Cell 3): HTML image has no alt attribute: ...
    • Suggestion: Add alt="description" to the img tag

lab/lab09/lab09.ipynb

Critical Issues: 1

lab/lab10/lab10.ipynb

Critical Issues: 1

lab/lab11/lab11.ipynb

Critical Issues: 1

lec/lec01/lec01.ipynb

Critical Issues: 1

lec/lec02/PriceElasticity.ipynb

Critical Issues: 1

  • Missing Alt Text (Cell 2): Image "PED-txt.png" has no alt text
    • Suggestion: Add descriptive alt text: description

lec/lec03/3.0-CubicCostCurve.ipynb

Critical Issues: 1

lec/lec03/3.1-Supply.ipynb

Critical Issues: 1

lec/lec03/3.2-sympy.ipynb

Critical Issues: 1

lec/lec03/3.3a-california-energy.ipynb

Critical Issues: 1

lec/lec04/lec04-CSfromSurvey.ipynb

Critical Issues: 1

lec/lec04/lec04-Market_Equilibrium_Surplus.ipynb

Critical Issues: 1

lec/lec04/lec04-Supply-Demand.ipynb

Critical Issues: 1

lec/lec04/lec04-four-plot-24.ipynb

Critical Issues: 1

lec/lec05/Lec5-Cobb-Douglas.ipynb

Critical Issues: 1

lec/lec05/Lec5-CobbD-AER1928.ipynb

Critical Issues: 1

lec/lec06/6.1-Sympy-Differentiation.ipynb

Critical Issues: 1

lec/lec06/6.3-3D-utility.ipynb

Critical Issues: 1

lec/lec06/6.4-latex.ipynb

Critical Issues: 1

lec/lec07/7.1-inequality.ipynb

Critical Issues: 2

  • Missing Alt Text (Cell 0): HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...
    • Suggestion: Add alt="description" to the img tag
  • Missing Alt Text (Cell 24): HTML image has no alt attribute: ...
    • Suggestion: Add alt="description" to the img tag

lec/lec08/Lec8.3-PD_MultiRoundGame.ipynb

Critical Issues: 1

lec/lec09/Lec9.2-waterguard.ipynb

Critical Issues: 2

  • Missing Alt Text (Cell 0): HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...
    • Suggestion: Add alt="description" to the img tag
  • Missing Alt Text (Cell 2): HTML image has no alt attribute: ...
    • Suggestion: Add alt="description" to the img tag

lec/lec09/lec9.1-mapping.ipynb

Critical Issues: 2

  • Missing Alt Text (Cell 0): HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...
    • Suggestion: Add alt="description" to the img tag
  • Missing Alt Text (Cell 2): HTML image has no alt attribute: ...
    • Suggestion: Add alt="description" to the img tag

lec/lec10/lec10-Taylor.ipynb

Critical Issues: 1

lec/lec10/macro-fred-api.ipynb

Critical Issues: 1

lec/lec12/Lec12-4-PersonalFinance.ipynb

Critical Issues: 1

lec/lec12/lec12-1_Interest_Payments.ipynb

Critical Issues: 1

lec/lec12/lec12-2-stocks-options.ipynb

Critical Issues: 1

lec/lec12/lec12-3-CAPM.ipynb

Critical Issues: 1

lec/lec13/13.3_KuznetsHypothesis.ipynb

Critical Issues: 1

lec/lec13/13.4_RoslingPlots.ipynb

Critical Issues: 1

lec/lec13/13.5_ConstructingMAC.ipynb

Critical Issues: 1

proj/proj01/proj01.ipynb

Critical Issues: 1

proj/proj02/proj02-0.ipynb

Critical Issues: 1

proj/proj02/proj02.ipynb

Critical Issues: 1

proj/proj03/proj03.ipynb

Critical Issues: 3

  • Missing Alt Text (Cell 1): HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...
    • Suggestion: Add alt="description" to the img tag
  • Missing Alt Text (Cell 99): HTML image has no alt attribute: <img src="chainmail.png" style="display: inline-bl...
    • Suggestion: Add alt="description" to the img tag
  • Missing Alt Text (Cell 99): HTML image has no alt attribute: <img src="bricks.png" style="display: inline-block...
    • Suggestion: Add alt="description" to the img tag

proj/proj04/proj04.ipynb

Critical Issues: 2

  • Missing Alt Text (Cell 1): HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...
    • Suggestion: Add alt="description" to the img tag
  • Missing Alt Text (Cell 65): HTML image has no alt attribute: ...
    • Suggestion: Add alt="description" to the img tag

Detailed Issues by Notebook

lab/lab02/lab02.ipynb

Issues: 18 (🔴 1 critical, 🟡 2 warnings, 🔵 15 info)

Bare URL

🔵 Cell 1: URL not wrapped in link: https://data-88e.github.io/assets/images/blue_text...

  • Suggestion: Wrap URL in descriptive link text: description

Code Documentation

🔵 Cell 10: Multiple consecutive code cells without explanation (cell 10)

  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 11: Multiple consecutive code cells without explanation (cell 11)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 12: Multiple consecutive code cells without explanation (cell 12)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 13: Multiple consecutive code cells without explanation (cell 13)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 14: Multiple consecutive code cells without explanation (cell 14)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 15: Multiple consecutive code cells without explanation (cell 15)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 16: Multiple consecutive code cells without explanation (cell 16)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 17: Multiple consecutive code cells without explanation (cell 17)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 18: Multiple consecutive code cells without explanation (cell 18)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 19: Multiple consecutive code cells without explanation (cell 19)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 20: Multiple consecutive code cells without explanation (cell 20)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 21: Multiple consecutive code cells without explanation (cell 21)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 22: Multiple consecutive code cells without explanation (cell 22)
  • Suggestion: Add markdown cells to explain code blocks

Missing Alt Text

🔴 Cell 1: HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...

  • Suggestion: Add alt="description" to the img tag

Missing Title

🟡 Notebook has no level 1 heading (title)

  • Suggestion: Add a # Title at the beginning of the notebook

Table Structure

🟡 Cell 1: HTML table missing header cells ()

  • Suggestion: Use tags for table headers

Text Block

🔵 Cell 6: Long paragraph (234 words) without breaks

  • Suggestion: Break long paragraphs into smaller chunks with subheadings or bullet points

lec/lec03/3.0-CubicCostCurve.ipynb

Issues: 13 (🔴 1 critical, 🟡 1 warnings, 🔵 11 info)

Bare URL

🔵 Cell 0: URL not wrapped in link: https://data-88e.github.io/assets/images/blue_text...

Code Documentation

🔵 Cell 11: Multiple consecutive code cells without explanation (cell 11)

  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 12: Multiple consecutive code cells without explanation (cell 12)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 13: Multiple consecutive code cells without explanation (cell 13)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 14: Multiple consecutive code cells without explanation (cell 14)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 15: Multiple consecutive code cells without explanation (cell 15)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 16: Multiple consecutive code cells without explanation (cell 16)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 17: Multiple consecutive code cells without explanation (cell 17)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 23: Multiple consecutive code cells without explanation (cell 23)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 24: Multiple consecutive code cells without explanation (cell 24)
  • Suggestion: Add markdown cells to explain code blocks

Missing Alt Text

🔴 Cell 0: HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...

  • Suggestion: Add alt="description" to the img tag

Table Structure

🟡 Cell 0: HTML table missing header cells ()

  • Suggestion: Use tags for table headers

lec/lec06/6.1-Sympy-Differentiation.ipynb

Issues: 13 (🔴 1 critical, 🟡 1 warnings, 🔵 11 info)

Bare URL

🔵 Cell 0: URL not wrapped in link: https://data-88e.github.io/assets/images/blue_text...

  • Suggestion: Wrap URL in descriptive link text: description

Code Documentation

🔵 Cell 34: Multiple consecutive code cells without explanation (cell 34)

  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 35: Multiple consecutive code cells without explanation (cell 35)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 36: Multiple consecutive code cells without explanation (cell 36)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 37: Multiple consecutive code cells without explanation (cell 37)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 38: Multiple consecutive code cells without explanation (cell 38)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 39: Multiple consecutive code cells without explanation (cell 39)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 45: Multiple consecutive code cells without explanation (cell 45)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 46: Multiple consecutive code cells without explanation (cell 46)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 47: Multiple consecutive code cells without explanation (cell 47)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 48: Multiple consecutive code cells without explanation (cell 48)
  • Suggestion: Add markdown cells to explain code blocks

Missing Alt Text

🔴 Cell 0: HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...

  • Suggestion: Add alt="description" to the img tag

Table Structure

🟡 Cell 0: HTML table missing header cells ()

  • Suggestion: Use tags for table headers

lec/lec12/lec12-2-stocks-options.ipynb

Issues: 13 (🔴 1 critical, 🟡 3 warnings, 🔵 9 info)

Bare URL

🔵 Cell 0: URL not wrapped in link: https://data-88e.github.io/assets/images/blue_text...

Code Documentation

🔵 Cell 13: Multiple consecutive code cells without explanation (cell 13)

  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 14: Multiple consecutive code cells without explanation (cell 14)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 46: Multiple consecutive code cells without explanation (cell 46)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 47: Multiple consecutive code cells without explanation (cell 47)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 48: Multiple consecutive code cells without explanation (cell 48)
  • Suggestion: Add markdown cells to explain code blocks

Color Reference

🟡 Cell 29: Reference to "red" color without additional identifier

  • Suggestion: Include additional identifiers beyond color (e.g., "the dashed red line" or "line A (red)") 🟡 Cell 29: Reference to "blue" color without additional identifier
  • Suggestion: Include additional identifiers beyond color (e.g., "the dashed red line" or "line A (red)")

Missing Alt Text

🔴 Cell 0: HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...

  • Suggestion: Add alt="description" to the img tag

Table Structure

🟡 Cell 0: HTML table missing header cells ()

  • Suggestion: Use tags for table headers

lab/lab05/lab05.ipynb

Issues: 11 (🔴 1 critical, 🟡 3 warnings, 🔵 7 info)

Bare URL

🔵 Cell 1: URL not wrapped in link: https://data-88e.github.io/assets/images/blue_text...

Heading Hierarchy

🟡 Cell 70: Heading level jumps from 2 to 4: "Optimal Choice"

  • Suggestion: Use heading level 3 instead

Missing Alt Text

🔴 Cell 1: HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...

  • Suggestion: Add alt="description" to the img tag

Poor Link Text

🟡 Cell 72: Link has non-descriptive text: "https://docs.scipy.org/doc/scipy/reference/tutorial/optimize.html#constrained-minimization-of-multivariate-scalar-functions-minimize"

  • Suggestion: Use descriptive link text that explains the destination

Table Structure

🟡 Cell 1: HTML table missing header cells ()

  • Suggestion: Use tags for table headers

lab/lab08/lab08.ipynb

Issues: 11 (🔴 2 critical, 🟡 5 warnings, 🔵 4 info)

Bare URL

🔵 Cell 1: URL not wrapped in link: https://data-88e.github.io/assets/images/blue_text...

Missing Alt Text

🔴 Cell 1: HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...

  • Suggestion: Add alt="description" to the img tag 🔴 Cell 3: HTML image has no alt attribute: ...
  • Suggestion: Add alt="description" to the img tag

Poor Link Text

🟡 Cell 8: Link has non-descriptive text: "here"

  • Suggestion: Use descriptive link text that explains the destination 🟡 Cell 18: Link has non-descriptive text: "Here"
  • Suggestion: Use descriptive link text that explains the destination 🟡 Cell 27: Link has non-descriptive text: "here"
  • Suggestion: Use descriptive link text that explains the destination 🟡 Cell 27: Link has non-descriptive text: "here"
  • Suggestion: Use descriptive link text that explains the destination

Table Structure

🟡 Cell 1: HTML table missing header cells ()

  • Suggestion: Use tags for table headers

lec/lec13/13.3_KuznetsHypothesis.ipynb

Issues: 11 (🔴 1 critical, 🟡 2 warnings, 🔵 8 info)

Bare URL

🔵 Cell 0: URL not wrapped in link: https://data-88e.github.io/assets/images/blue_text...

Missing Alt Text

🔴 Cell 0: HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...

  • Suggestion: Add alt="description" to the img tag

Missing Title

🟡 Notebook has no level 1 heading (title)

  • Suggestion: Add a # Title at the beginning of the notebook

Table Structure

🟡 Cell 0: HTML table missing header cells ()

  • Suggestion: Use tags for table headers

lec/lec03/CAISO_2024.ipynb

Issues: 10 (🟡 0 warnings, 🔵 10 info)

Code Documentation

🔵 Cell 6: Multiple consecutive code cells without explanation (cell 6)

  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 7: Multiple consecutive code cells without explanation (cell 7)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 8: Multiple consecutive code cells without explanation (cell 8)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 9: Multiple consecutive code cells without explanation (cell 9)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 10: Multiple consecutive code cells without explanation (cell 10)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 11: Multiple consecutive code cells without explanation (cell 11)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 12: Multiple consecutive code cells without explanation (cell 12)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 13: Multiple consecutive code cells without explanation (cell 13)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 14: Multiple consecutive code cells without explanation (cell 14)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 15: Multiple consecutive code cells without explanation (cell 15)
  • Suggestion: Add markdown cells to explain code blocks

proj/proj03/proj03.ipynb

Issues: 10 (🔴 3 critical, 🟡 2 warnings, 🔵 5 info)

Bare URL

🔵 Cell 1: URL not wrapped in link: https://data-88e.github.io/assets/images/blue_text...

Missing Alt Text

🔴 Cell 1: HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...

  • Suggestion: Add alt="description" to the img tag 🔴 Cell 99: HTML image has no alt attribute: <img src="chainmail.png" style="display: inline-bl...
  • Suggestion: Add alt="description" to the img tag 🔴 Cell 99: HTML image has no alt attribute: <img src="bricks.png" style="display: inline-block...
  • Suggestion: Add alt="description" to the img tag

Table Structure

🟡 Cell 1: HTML table missing header cells ()

  • Suggestion: Use tags for table headers 🟡 Cell 4: HTML table missing header cells ()
  • Suggestion: Use tags for table headers

lec/lec12/lec12-3-CAPM.ipynb

Issues: 9 (🔴 1 critical, 🟡 2 warnings, 🔵 6 info)

Bare URL

🔵 Cell 0: URL not wrapped in link: https://data-88e.github.io/assets/images/blue_text...

  • Suggestion: Wrap URL in descriptive link text: description

Code Documentation

🔵 Cell 8: Multiple consecutive code cells without explanation (cell 8)

  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 9: Multiple consecutive code cells without explanation (cell 9)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 10: Multiple consecutive code cells without explanation (cell 10)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 11: Multiple consecutive code cells without explanation (cell 11)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 17: Multiple consecutive code cells without explanation (cell 17)
  • Suggestion: Add markdown cells to explain code blocks

Missing Alt Text

🔴 Cell 0: HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...

  • Suggestion: Add alt="description" to the img tag

Missing Title

🟡 Notebook has no level 1 heading (title)

  • Suggestion: Add a # Title at the beginning of the notebook

Table Structure

🟡 Cell 0: HTML table missing header cells ()

  • Suggestion: Use tags for table headers

lab/lab06/lab06.ipynb

Issues: 8 (🔴 1 critical, 🟡 3 warnings, 🔵 4 info)

Bare URL

🔵 Cell 1: URL not wrapped in link: https://data-88e.github.io/assets/images/blue_text...

Missing Alt Text

🔴 Cell 1: HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...

  • Suggestion: Add alt="description" to the img tag

Poor Link Text

🟡 Cell 34: Link has non-descriptive text: "here"

  • Suggestion: Use descriptive link text that explains the destination 🟡 Cell 40: Link has non-descriptive text: "here"
  • Suggestion: Use descriptive link text that explains the destination

Table Structure

🟡 Cell 1: HTML table missing header cells ()

  • Suggestion: Use tags for table headers

lec/lec02/Avocados_2.ipynb

Issues: 8 (🟡 1 warnings, 🔵 7 info)

Code Documentation

🔵 Cell 17: Multiple consecutive code cells without explanation (cell 17)

  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 18: Multiple consecutive code cells without explanation (cell 18)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 19: Multiple consecutive code cells without explanation (cell 19)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 20: Multiple consecutive code cells without explanation (cell 20)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 21: Multiple consecutive code cells without explanation (cell 21)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 22: Multiple consecutive code cells without explanation (cell 22)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 23: Multiple consecutive code cells without explanation (cell 23)
  • Suggestion: Add markdown cells to explain code blocks

Poor Link Text

🟡 Cell 2: Link has non-descriptive text: "here"

  • Suggestion: Use descriptive link text that explains the destination

lec/lec03/3.1-Supply.ipynb

Issues: 8 (🔴 1 critical, 🟡 1 warnings, 🔵 6 info)

Bare URL

🔵 Cell 0: URL not wrapped in link: https://data-88e.github.io/assets/images/blue_text...

Code Documentation

🔵 Cell 49: Multiple consecutive code cells without explanation (cell 49)

  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 50: Multiple consecutive code cells without explanation (cell 50)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 51: Multiple consecutive code cells without explanation (cell 51)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 52: Multiple consecutive code cells without explanation (cell 52)
  • Suggestion: Add markdown cells to explain code blocks

Missing Alt Text

🔴 Cell 0: HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...

  • Suggestion: Add alt="description" to the img tag

Table Structure

🟡 Cell 0: HTML table missing header cells ()

  • Suggestion: Use tags for table headers

lec/lec13/13.1_Co2_ClimateChange.ipynb

Issues: 8 (🟡 3 warnings, 🔵 5 info)

Bare URL

🔵 Cell 2: URL not wrapped in link: https://www.esrl.noaa.gov/gmd/ccgg/trends/data.htm...

Code Documentation

🔵 Cell 14: Multiple consecutive code cells without explanation (cell 14)

  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 15: Multiple consecutive code cells without explanation (cell 15)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 16: Multiple consecutive code cells without explanation (cell 16)
  • Suggestion: Add markdown cells to explain code blocks

Missing Title

🟡 Notebook has no level 1 heading (title)

  • Suggestion: Add a # Title at the beginning of the notebook

Poor Alt Text

🟡 Cell 2: Image "https://upload.wikimedia.org/wikipedia/commons/1/11/NOAA_logo_mobile.svg" has inadequate alt text: "NOAA"

  • Suggestion: Use more descriptive alt text that explains the image content 🟡 Cell 6: Image "https://www.giss.nasa.gov/gfx/2013/nasa_x2.png" has inadequate alt text: "NASA"
  • Suggestion: Use more descriptive alt text that explains the image content

proj/proj01/proj01.ipynb

Issues: 8 (🔴 1 critical, 🟡 2 warnings, 🔵 5 info)

Bare URL

🔵 Cell 1: URL not wrapped in link: https://data-88e.github.io/assets/images/blue_text...

Missing Alt Text

🔴 Cell 1: HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...

  • Suggestion: Add alt="description" to the img tag

Poor Link Text

🟡 Cell 8: Link has non-descriptive text: "here"

  • Suggestion: Use descriptive link text that explains the destination

Table Structure

🟡 Cell 1: HTML table missing header cells ()

  • Suggestion: Use tags for table headers

lec/lec03/3.3a-california-energy.ipynb

Issues: 7 (🔴 1 critical, 🟡 2 warnings, 🔵 4 info)

Bare URL

🔵 Cell 0: URL not wrapped in link: https://data-88e.github.io/assets/images/blue_text...

  • Suggestion: Wrap URL in descriptive link text: description

Code Documentation

🔵 Cell 18: Multiple consecutive code cells without explanation (cell 18)

  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 19: Multiple consecutive code cells without explanation (cell 19)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 20: Multiple consecutive code cells without explanation (cell 20)
  • Suggestion: Add markdown cells to explain code blocks

Missing Alt Text

🔴 Cell 0: HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...

  • Suggestion: Add alt="description" to the img tag

Missing Title

🟡 Notebook has no level 1 heading (title)

  • Suggestion: Add a # Title at the beginning of the notebook

Table Structure

🟡 Cell 0: HTML table missing header cells ()

  • Suggestion: Use tags for table headers

lec/lec09/lec9.1-mapping.ipynb

Issues: 7 (🔴 2 critical, 🟡 3 warnings, 🔵 2 info)

Bare URL

🔵 Cell 0: URL not wrapped in link: https://data-88e.github.io/assets/images/blue_text...

  • Suggestion: Wrap URL in descriptive link text: description

Code Documentation

🔵 Cell 22: Multiple consecutive code cells without explanation (cell 22)

  • Suggestion: Add markdown cells to explain code blocks

Missing Alt Text

🔴 Cell 0: HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...

  • Suggestion: Add alt="description" to the img tag 🔴 Cell 2: HTML image has no alt attribute: ...
  • Suggestion: Add alt="description" to the img tag

Poor Link Text

🟡 Cell 8: Link has non-descriptive text: "here"

  • Suggestion: Use descriptive link text that explains the destination 🟡 Cell 18: Link has non-descriptive text: "Here"
  • Suggestion: Use descriptive link text that explains the destination

Table Structure

🟡 Cell 0: HTML table missing header cells ()

  • Suggestion: Use tags for table headers

lec/lec10/lec10-Taylor.ipynb

Issues: 7 (🔴 1 critical, 🟡 3 warnings, 🔵 3 info)

Bare URL

🔵 Cell 0: URL not wrapped in link: https://data-88e.github.io/assets/images/blue_text...

Code Documentation

🔵 Cell 38: Multiple consecutive code cells without explanation (cell 38)

  • Suggestion: Add markdown cells to explain code blocks

Heading Hierarchy

🟡 Cell 5: Heading level jumps from 1 to 4: "Step 2: Learn to use the API"

  • Suggestion: Use heading level 2 instead

Missing Alt Text

🔴 Cell 0: HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...

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Poor Link Text

🟡 Cell 5: Link has non-descriptive text: "here"

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Table Structure

🟡 Cell 0: HTML table missing header cells ()

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lec/lec10/macro-fred-api.ipynb

Issues: 7 (🔴 1 critical, 🟡 4 warnings, 🔵 2 info)

Bare URL

🔵 Cell 0: URL not wrapped in link: https://data-88e.github.io/assets/images/blue_text...

Missing Alt Text

🔴 Cell 0: HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...

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Poor Link Text

🟡 Cell 11: Link has non-descriptive text: "here"

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Table Structure

🟡 Cell 0: HTML table missing header cells ()

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proj/proj04/proj04.ipynb

Issues: 7 (🔴 2 critical, 🟡 1 warnings, 🔵 4 info)

Bare URL

🔵 Cell 1: URL not wrapped in link: https://data-88e.github.io/assets/images/blue_text...

Missing Alt Text

🔴 Cell 1: HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...

  • Suggestion: Add alt="description" to the img tag 🔴 Cell 65: HTML image has no alt attribute: ...
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Table Structure

🟡 Cell 1: HTML table missing header cells ()

  • Suggestion: Use tags for table headers

lab/lab07/lab07.ipynb

Issues: 6 (🔴 1 critical, 🟡 3 warnings, 🔵 2 info)

Bare URL

🔵 Cell 1: URL not wrapped in link: https://data-88e.github.io/assets/images/blue_text...

Heading Hierarchy

🟡 Cell 4: Heading level jumps from 1 to 3: "Question 1"

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Missing Alt Text

🔴 Cell 1: HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...

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Table Structure

🟡 Cell 1: HTML table missing header cells ()

  • Suggestion: Use tags for table headers 🟡 Cell 4: HTML table missing header cells ()
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lab/lab11/lab11.ipynb

Issues: 6 (🔴 1 critical, 🟡 3 warnings, 🔵 2 info)

Bare URL

🔵 Cell 2: URL not wrapped in link: https://data-88e.github.io/assets/images/blue_text...

Color Reference

🟡 Cell 42: Reference to "red" color without additional identifier

  • Suggestion: Include additional identifiers beyond color (e.g., "the dashed red line" or "line A (red)")

Missing Alt Text

🔴 Cell 2: HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...

  • Suggestion: Add alt="description" to the img tag

Missing Title

🟡 Notebook has no level 1 heading (title)

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Table Structure

🟡 Cell 2: HTML table missing header cells ()

  • Suggestion: Use tags for table headers

lec/lec01/Data88E-terms.ipynb

Issues: 6 (🟡 1 warnings, 🔵 5 info)

Code Documentation

🔵 Cell 3: Multiple consecutive code cells without explanation (cell 3)

  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 4: Multiple consecutive code cells without explanation (cell 4)
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Missing Title

🟡 Notebook has no level 1 heading (title)

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lec/lec01/lec01.ipynb

Issues: 6 (🔴 1 critical, 🟡 4 warnings, 🔵 1 info)

Bare URL

🔵 Cell 0: URL not wrapped in link: https://data-88e.github.io/assets/images/blue_text...

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Color Reference

🟡 Cell 24: Reference to "blue" color without additional identifier

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  • Suggestion: Include additional identifiers beyond color (e.g., "the dashed red line" or "line A (red)")

Missing Alt Text

🔴 Cell 0: HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...

  • Suggestion: Add alt="description" to the img tag

Poor Link Text

🟡 Cell 22: Link has non-descriptive text: "here"

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Table Structure

🟡 Cell 0: HTML table missing header cells ()

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lec/lec09/Lec9.2-waterguard.ipynb

Issues: 6 (🔴 2 critical, 🟡 3 warnings, 🔵 1 info)

Bare URL

🔵 Cell 0: URL not wrapped in link: https://data-88e.github.io/assets/images/blue_text...

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🔴 Cell 0: HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...

  • Suggestion: Add alt="description" to the img tag 🔴 Cell 2: HTML image has no alt attribute: ...
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Poor Link Text

🟡 Cell 7: Link has non-descriptive text: "here"

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Table Structure

🟡 Cell 0: HTML table missing header cells ()

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lec/lec12/Lec12-4-PersonalFinance.ipynb

Issues: 6 (🔴 1 critical, 🟡 2 warnings, 🔵 3 info)

Bare URL

🔵 Cell 0: URL not wrapped in link: https://data-88e.github.io/assets/images/blue_text...

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Code Documentation

🔵 Cell 51: Multiple consecutive code cells without explanation (cell 51)

  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 52: Multiple consecutive code cells without explanation (cell 52)
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Missing Alt Text

🔴 Cell 0: HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...

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🟡 Notebook has no level 1 heading (title)

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Table Structure

🟡 Cell 0: HTML table missing header cells ()

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lec/lec14/OpenAI_API_Dec2025.ipynb

Issues: 6 (🟡 0 warnings, 🔵 6 info)

Bare URL

🔵 Cell 20: URL not wrapped in link: https://platform.openai.com/docs/pricing#text-toke...

Code Documentation

🔵 Cell 44: Multiple consecutive code cells without explanation (cell 44)

  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 45: Multiple consecutive code cells without explanation (cell 45)
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proj/proj02/proj02-0.ipynb

Issues: 6 (🔴 1 critical, 🟡 1 warnings, 🔵 4 info)

Bare URL

🔵 Cell 1: URL not wrapped in link: https://data-88e.github.io/assets/images/blue_text...

Missing Alt Text

🔴 Cell 1: HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...

  • Suggestion: Add alt="description" to the img tag

Table Structure

🟡 Cell 1: HTML table missing header cells ()

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proj/proj02/proj02.ipynb

Issues: 6 (🔴 1 critical, 🟡 1 warnings, 🔵 4 info)

Bare URL

🔵 Cell 1: URL not wrapped in link: https://data-88e.github.io/assets/images/blue_text...

Missing Alt Text

🔴 Cell 1: HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...

  • Suggestion: Add alt="description" to the img tag

Table Structure

🟡 Cell 1: HTML table missing header cells ()

  • Suggestion: Use tags for table headers

lab/lab04/lab04.ipynb

Issues: 5 (🔴 1 critical, 🟡 1 warnings, 🔵 3 info)

Bare URL

🔵 Cell 1: URL not wrapped in link: https://data-88e.github.io/assets/images/blue_text...

Missing Alt Text

🔴 Cell 1: HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...

  • Suggestion: Add alt="description" to the img tag

Table Structure

🟡 Cell 1: HTML table missing header cells ()

  • Suggestion: Use tags for table headers

lab/lab09/lab09.ipynb

Issues: 5 (🔴 1 critical, 🟡 2 warnings, 🔵 2 info)

Bare URL

🔵 Cell 1: URL not wrapped in link: https://data-88e.github.io/assets/images/blue_text...

Missing Alt Text

🔴 Cell 1: HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...

  • Suggestion: Add alt="description" to the img tag

Poor Link Text

🟡 Cell 7: Link has non-descriptive text: "here"

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Table Structure

🟡 Cell 1: HTML table missing header cells ()

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lec/lec02/Demand_Steps_25.ipynb

Issues: 5 (🟡 0 warnings, 🔵 5 info)

Bare URL

🔵 Cell 0: URL not wrapped in link: https://forms.gle/vVwcy3mR5nt4br4W7...

Code Documentation

🔵 Cell 23: Multiple consecutive code cells without explanation (cell 23)

  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 24: Multiple consecutive code cells without explanation (cell 24)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 25: Multiple consecutive code cells without explanation (cell 25)
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lec/lec02/ScannerData_Beer.ipynb

Issues: 5 (🟡 0 warnings, 🔵 5 info)

Code Documentation

🔵 Cell 15: Multiple consecutive code cells without explanation (cell 15)

  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 16: Multiple consecutive code cells without explanation (cell 16)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 17: Multiple consecutive code cells without explanation (cell 17)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 18: Multiple consecutive code cells without explanation (cell 18)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 19: Multiple consecutive code cells without explanation (cell 19)
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lec/lec03/3.2-sympy.ipynb

Issues: 5 (🔴 1 critical, 🟡 3 warnings, 🔵 1 info)

Bare URL

🔵 Cell 0: URL not wrapped in link: https://data-88e.github.io/assets/images/blue_text...

  • Suggestion: Wrap URL in descriptive link text: description

Heading Hierarchy

🟡 Cell 31: Heading level jumps from 1 to 3: "Data Preprocessing"

  • Suggestion: Use heading level 2 instead

Missing Alt Text

🔴 Cell 0: HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...

  • Suggestion: Add alt="description" to the img tag

Poor Link Text

🟡 Cell 56: Link has non-descriptive text: "here"

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Table Structure

🟡 Cell 0: HTML table missing header cells ()

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lec/lec04/lec04-CSfromSurvey.ipynb

Issues: 5 (🔴 1 critical, 🟡 1 warnings, 🔵 3 info)

Bare URL

🔵 Cell 0: URL not wrapped in link: https://data-88e.github.io/assets/images/blue_text...

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Code Documentation

🔵 Cell 28: Multiple consecutive code cells without explanation (cell 28)

  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 37: Multiple consecutive code cells without explanation (cell 37)
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Missing Alt Text

🔴 Cell 0: HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...

  • Suggestion: Add alt="description" to the img tag

Table Structure

🟡 Cell 0: HTML table missing header cells ()

  • Suggestion: Use tags for table headers

lec/lec05/Lec5-Cobb-Douglas.ipynb

Issues: 5 (🔴 1 critical, 🟡 2 warnings, 🔵 2 info)

Bare URL

🔵 Cell 0: URL not wrapped in link: https://data-88e.github.io/assets/images/blue_text...

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Code Documentation

🔵 Cell 10: Multiple consecutive code cells without explanation (cell 10)

  • Suggestion: Add markdown cells to explain code blocks

Heading Hierarchy

🟡 Cell 6: Heading level jumps from 1 to 3: "Let's think about the structure of the data"

  • Suggestion: Use heading level 2 instead

Missing Alt Text

🔴 Cell 0: HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...

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Table Structure

🟡 Cell 0: HTML table missing header cells ()

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lec/lec05/Lec5-CobbD-AER1928.ipynb

Issues: 5 (🔴 1 critical, 🟡 2 warnings, 🔵 2 info)

Bare URL

🔵 Cell 0: URL not wrapped in link: https://data-88e.github.io/assets/images/blue_text...

Missing Alt Text

🔴 Cell 0: HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...

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Missing Title

🟡 Notebook has no level 1 heading (title)

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Table Structure

🟡 Cell 0: HTML table missing header cells ()

  • Suggestion: Use tags for table headers

lec/lec08/Lec8.1-TwoThirdsGame.ipynb

Issues: 5 (🟡 0 warnings, 🔵 5 info)

Code Documentation

🔵 Cell 6: Multiple consecutive code cells without explanation (cell 6)

  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 7: Multiple consecutive code cells without explanation (cell 7)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 12: Multiple consecutive code cells without explanation (cell 12)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 17: Multiple consecutive code cells without explanation (cell 17)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 18: Multiple consecutive code cells without explanation (cell 18)
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lec/lec12/lec12-1_Interest_Payments.ipynb

Issues: 5 (🔴 1 critical, 🟡 1 warnings, 🔵 3 info)

Bare URL

🔵 Cell 0: URL not wrapped in link: https://data-88e.github.io/assets/images/blue_text...

Missing Alt Text

🔴 Cell 0: HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...

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Table Structure

🟡 Cell 0: HTML table missing header cells ()

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lec/lec13/13.2_EmissionsTracker.ipynb

Issues: 5 (🟡 2 warnings, 🔵 3 info)

Bare URL

🔵 Cell 0: URL not wrapped in link: https://climateactiontracker.org/methodology/estim...

Code Documentation

🔵 Cell 4: Multiple consecutive code cells without explanation (cell 4)

  • Suggestion: Add markdown cells to explain code blocks

Missing Title

🟡 Notebook has no level 1 heading (title)

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Table Structure

🟡 Cell 0: Table may be missing header row

  • Suggestion: Ensure table has a header row with separator (|---|---|)

lec/lec13/13.4_RoslingPlots.ipynb

Issues: 5 (🔴 1 critical, 🟡 2 warnings, 🔵 2 info)

Bare URL

🔵 Cell 0: URL not wrapped in link: https://data-88e.github.io/assets/images/blue_text...

Missing Alt Text

🔴 Cell 0: HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...

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Missing Title

🟡 Notebook has no level 1 heading (title)

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Table Structure

🟡 Cell 0: HTML table missing header cells ()

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lec/lec13/13.5_ConstructingMAC.ipynb

Issues: 5 (🔴 1 critical, 🟡 3 warnings, 🔵 1 info)

Bare URL

🔵 Cell 0: URL not wrapped in link: https://data-88e.github.io/assets/images/blue_text...

  • Suggestion: Wrap URL in descriptive link text: description

Heading Hierarchy

🟡 Cell 11: Heading level jumps from 2 to 5: "The Second column is Region. To begin with, let's select the Asia Pacific region."

  • Suggestion: Use heading level 3 instead

Missing Alt Text

🔴 Cell 0: HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...

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Missing Title

🟡 Notebook has no level 1 heading (title)

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Table Structure

🟡 Cell 0: HTML table missing header cells ()

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lab/lab01/lab01.ipynb

Issues: 4 (🔴 1 critical, 🟡 1 warnings, 🔵 2 info)

Bare URL

🔵 Cell 1: URL not wrapped in link: https://data-88e.github.io/assets/images/blue_text...

Missing Alt Text

🔴 Cell 1: HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...

  • Suggestion: Add alt="description" to the img tag

Table Structure

🟡 Cell 1: HTML table missing header cells ()

  • Suggestion: Use tags for table headers

lab/lab10/lab10.ipynb

Issues: 4 (🔴 1 critical, 🟡 1 warnings, 🔵 2 info)

Bare URL

🔵 Cell 1: URL not wrapped in link: https://data-88e.github.io/assets/images/blue_text...

Missing Alt Text

🔴 Cell 1: HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...

  • Suggestion: Add alt="description" to the img tag

Table Structure

🟡 Cell 1: HTML table missing header cells ()

  • Suggestion: Use tags for table headers

lec/lec04/lec04-four-plot-24.ipynb

Issues: 4 (🔴 1 critical, 🟡 1 warnings, 🔵 2 info)

Bare URL

🔵 Cell 0: URL not wrapped in link: https://pressbooks.bccampus.ca/uvicecon103/chapter...

Missing Alt Text

🔴 Cell 1: HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...

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Table Structure

🟡 Cell 1: HTML table missing header cells ()

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lec/lec06/6.2-QuantEcon-Optimization.ipynb

Issues: 4 (🟡 1 warnings, 🔵 3 info)

Bare URL

🔵 Cell 0: URL not wrapped in link: https://datascience.quantecon.org/scientific/optim...

Poor Link Text

🟡 Cell 25: Link has non-descriptive text: "https://docs.scipy.org/doc/scipy/reference/tutorial/optimize.html#constrained-minimization-of-multivariate-scalar-functions-minimize"

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lec/lec06/6.4-latex.ipynb

Issues: 4 (🔴 1 critical, 🟡 1 warnings, 🔵 2 info)

Bare URL

🔵 Cell 0: URL not wrapped in link: https://data-88e.github.io/assets/images/blue_text...

Missing Alt Text

🔴 Cell 0: HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...

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Table Structure

🟡 Cell 0: HTML table missing header cells ()

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lec/lec07/7.1-inequality.ipynb

Issues: 4 (🔴 2 critical, 🟡 1 warnings, 🔵 1 info)

Bare URL

🔵 Cell 0: URL not wrapped in link: https://data-88e.github.io/assets/images/blue_text...

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Missing Alt Text

🔴 Cell 0: HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...

  • Suggestion: Add alt="description" to the img tag 🔴 Cell 24: HTML image has no alt attribute: ...
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Table Structure

🟡 Cell 0: HTML table missing header cells ()

  • Suggestion: Use tags for table headers

lab/lab03/lab03.ipynb

Issues: 3 (🔴 1 critical, 🟡 1 warnings, 🔵 1 info)

Bare URL

🔵 Cell 1: URL not wrapped in link: https://data-88e.github.io/assets/images/blue_text...

  • Suggestion: Wrap URL in descriptive link text: description

Missing Alt Text

🔴 Cell 1: HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...

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Table Structure

🟡 Cell 1: HTML table missing header cells ()

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lec/lec02/PriceElasticity.ipynb

Issues: 3 (🔴 1 critical, 🟡 1 warnings, 🔵 1 info)

Bare URL

🔵 Cell 2: URL not wrapped in link: https://data88e.org/textbook/content/01-demand/04-...

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Missing Alt Text

🔴 Cell 2: Image "PED-txt.png" has no alt text

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Missing Title

🟡 Notebook has no level 1 heading (title)

  • Suggestion: Add a # Title at the beginning of the notebook

lec/lec03/3.3_Sympy_2.ipynb

Issues: 3 (🟡 0 warnings, 🔵 3 info)

Code Documentation

🔵 Cell 5: Multiple consecutive code cells without explanation (cell 5)

  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 6: Multiple consecutive code cells without explanation (cell 6)
  • Suggestion: Add markdown cells to explain code blocks 🔵 Cell 7: Multiple consecutive code cells without explanation (cell 7)
  • Suggestion: Add markdown cells to explain code blocks

lec/lec04/lec04-Market_Equilibrium_Surplus.ipynb

Issues: 3 (🔴 1 critical, 🟡 1 warnings, 🔵 1 info)

Bare URL

🔵 Cell 0: URL not wrapped in link: https://data-88e.github.io/assets/images/blue_text...

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Missing Alt Text

🔴 Cell 0: HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...

  • Suggestion: Add alt="description" to the img tag

Table Structure

🟡 Cell 0: HTML table missing header cells ()

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lec/lec04/lec04-Supply-Demand.ipynb

Issues: 3 (🔴 1 critical, 🟡 1 warnings, 🔵 1 info)

Bare URL

🔵 Cell 0: URL not wrapped in link: https://data-88e.github.io/assets/images/blue_text...

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Missing Alt Text

🔴 Cell 0: HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...

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Table Structure

🟡 Cell 0: HTML table missing header cells ()

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lec/lec06/6.3-3D-utility.ipynb

Issues: 3 (🔴 1 critical, 🟡 1 warnings, 🔵 1 info)

Bare URL

🔵 Cell 0: URL not wrapped in link: https://data-88e.github.io/assets/images/blue_text...

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Missing Alt Text

🔴 Cell 0: HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...

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Table Structure

🟡 Cell 0: HTML table missing header cells ()

  • Suggestion: Use tags for table headers

lec/lec06/6.5-Edgeworth.ipynb

Issues: 3 (🟡 2 warnings, 🔵 1 info)

Bare URL

🔵 Cell 0: URL not wrapped in link: https://deepnote.com/app/gaby-galvan/Edgeworth-Box...

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Color Reference

🟡 Cell 16: Reference to "green" color without additional identifier

  • Suggestion: Include additional identifiers beyond color (e.g., "the dashed red line" or "line A (red)")

Missing Title

🟡 Notebook has no level 1 heading (title)

  • Suggestion: Add a # Title at the beginning of the notebook

lec/lec08/Lec8.3-PD_MultiRoundGame.ipynb

Issues: 3 (🔴 1 critical, 🟡 1 warnings, 🔵 1 info)

Bare URL

🔵 Cell 0: URL not wrapped in link: https://data-88e.github.io/assets/images/blue_text...

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Missing Alt Text

🔴 Cell 0: HTML image has no alt attribute: <img src="https://data-88e.github.io/assets/images...

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Table Structure

🟡 Cell 0: HTML table missing header cells ()

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lec/lec02/Avocados_demand.ipynb

Issues: 2 (🟡 2 warnings, 🔵 0 info)

Color Reference

🟡 Cell 72: Reference to "red" color without additional identifier

  • Suggestion: Include additional identifiers beyond color (e.g., "the dashed red line" or "line A (red)")

Poor Link Text

🟡 Cell 2: Link has non-descriptive text: "here"

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lec/lec01/slides.ipynb

Issues: 1 (🟡 1 warnings, 🔵 0 info)

Heading Hierarchy

🟡 Cell 2: Heading level jumps from 1 to 3: "Introduction"

  • Suggestion: Use heading level 2 instead

✅ Notebooks with No Issues

  • lec/lec07/7.2-historical-inequality.ipynb
  • lec/lec08/Lec8.2-Three_Games.ipynb
  • lec/lec14/GPT4All_SmallLM_Demo_Dec25.ipynb

Accessibility Guidelines

Images

  • All images must have descriptive alt text
  • Alt text should describe the content and purpose of the image
  • Avoid generic terms like "image" or "picture"

Headings

  • Use proper heading hierarchy (H1 → H2 → H3)
  • Don't skip heading levels
  • Each notebook should have a title (H1)

Links

  • Use descriptive link text that explains the destination
  • Avoid generic text like "click here" or "this link"
  • Don't use bare URLs; wrap them in descriptive text

Tables

  • All tables should have header rows
  • Use proper table markup (markdown or HTML)

Color References

  • Don't rely solely on color to convey information
  • Include additional identifiers (patterns, labels, shapes)

Code Documentation

  • Add explanatory text before code blocks
  • Break up long sequences of code with markdown explanations

Text Formatting

  • Break long paragraphs into smaller chunks
  • Use bullet points and subheadings for readability