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MST #175

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@GomezGab GomezGab commented Jul 15, 2025

Summary by CodeRabbit

  • Documentation
    • Added comprehensive documentation for the Minimum Spanning Forest (MSF) algorithm, including an overview, usage instructions, parameter descriptions, example graph creation, practical use case, and visual aids.
    • Detailed the syntax for invoking the MSF algorithm and described the output format.

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coderabbitai bot commented Jul 15, 2025

Walkthrough

A new documentation file for the Minimum Spanning Forest (MSF) algorithm has been added. It details the algorithm's purpose, usage, configuration options, and output. The documentation includes a usage example, a sample graph, and visual aids to illustrate the algorithm's application and results.

Changes

File(s) Change Summary
algorithms/msf.md Added comprehensive documentation for the Minimum Spanning Forest (MSF) algorithm, including usage and examples.

Poem

In the forest of graphs, where edges entwine,
A new guide appears—MSF by design.
With roads and with bridges, connections are found,
The lightest of links, where solutions abound.
Now rabbits and coders can hop with delight,
Through minimum trees, their paths shining bright!


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Actionable comments posted: 0

🧹 Nitpick comments (5)
algorithms/mst.md (5)

38-40: Fix typo and capitalize sentence in weightAttribute row
attribute is misspelled and the sentence should start with an uppercase letter.

-| `weightAttribute`   | string | Unweighted             | the atrribute to use as the tree weight.                                   |
+| `weightAttribute`   | string | Unweighted             | The attribute to use as the tree weight.                                   |

44-46: Correct acronym from “MSF” to “MST”
The table describes the Minimum Spanning Tree; “MSF” is a typo.

-| `edge`   | Edge   | An edge entity which is part of the MSF graph |
+| `edge`   | Edge   | An edge entity which is part of the MST graph |

49-49: Remove trailing colon in heading
Markdown-lint (MD026) flags trailing punctuation.

-## Examples:
+## Examples

79-79: Remove trailing colon in sub-heading
Same MD026 warning as above.

-### Example: Find cheapest road network:
+### Example: Find cheapest road network

84-92: Add blank lines around results table
MD058 requires a blank line before and after tables.

-#### Expected Results
-| Edge      | weight |
-|-----------|--------|
-| `[:ROAD]` | 0.7    |
-| `[:TRAM]` | 1.2    |
-| `[:TRAM]` | 1.5    |
-| `[:ROAD]` | 2.2    |
-| `[:ROAD]` | 2.3    |
-| `[:ROAD]` | 3.0    |
+#### Expected Results
+
+| Edge      | weight |
+|-----------|--------|
+| `[:ROAD]` | 0.7    |
+| `[:TRAM]` | 1.2    |
+| `[:TRAM]` | 1.5    |
+| `[:ROAD]` | 2.2    |
+| `[:ROAD]` | 2.3    |
+| `[:ROAD]` | 3.0    |
+
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Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between a15813a and b59f0eb.

⛔ Files ignored due to path filters (1)
  • images/city_plan.png is excluded by !**/*.png
📒 Files selected for processing (1)
  • algorithms/mst.md (1 hunks)
🧰 Additional context used
🪛 markdownlint-cli2 (0.17.2)
algorithms/mst.md

49-49: Trailing punctuation in heading
Punctuation: ':'

(MD026, no-trailing-punctuation)


79-79: Trailing punctuation in heading
Punctuation: ':'

(MD026, no-trailing-punctuation)


85-85: Tables should be surrounded by blank lines

(MD058, blanks-around-tables)

🪛 GitHub Actions: spellcheck
algorithms/mst.md

[error] 1-1: Spelling errors detected: 'subgraph', 'atrribute', 'MSF'. Please correct the spelling mistakes.

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Actionable comments posted: 0

🧹 Nitpick comments (6)
algorithms/mst.md (6)

49-49: Remove trailing colon from the heading

Markdown-lint (MD026) flags punctuation at the end of a heading.
Suggested tweak:

-## Examples:
+## Examples

79-79: Same MD026 issue for this sub-heading

-### Example: Find cheapest road network:
+### Example – Find cheapest road network

84-85: Add a blank line before the table

Markdown-lint (MD058) requires tables to be surrounded by blank lines to render properly.

-#### Expected Results
-| Edge      | weight |
+#### Expected Results
+
+| Edge      | weight |

51-51: Apostrophe missing in “Let’s”

-Lets take this City as an example:
+Let's take this City as an example:

20-21: Clarify wording – use “minimum-weight edges”

“Minimum edges” could be misread as “fewest edges”. Re-phrase for precision.

-MST first assigns each node to its own component. It iteratively scans for the minimum edges linking nodes across different components
+MST first assigns each node to its own component. It iteratively scans for the minimum-weight edges linking nodes across different components

22-22: Minor verb agreement

-If no attribute is given, returns any spanning tree.
+If no attribute is given, the procedure returns an arbitrary spanning tree.
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Reviewing files that changed from the base of the PR and between b59f0eb and 1acf46c.

📒 Files selected for processing (1)
  • algorithms/mst.md (1 hunks)
🧰 Additional context used
🪛 markdownlint-cli2 (0.17.2)
algorithms/mst.md

49-49: Trailing punctuation in heading
Punctuation: ':'

(MD026, no-trailing-punctuation)


79-79: Trailing punctuation in heading
Punctuation: ':'

(MD026, no-trailing-punctuation)


85-85: Tables should be surrounded by blank lines

(MD058, blanks-around-tables)

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Actionable comments posted: 2

🧹 Nitpick comments (4)
algorithms/mst.md (4)

1-5: Front-matter duplication & missing SEO keywords
title and description repeat the same text, which dings search-ranking and looks sloppy. Consider adding a concise, keyword-rich sentence to description instead of mirroring the title.

-title: "Minimum Spanning Tree (MST)"
-description: "Minimum Spanning Tree (MST)"
+title: "Minimum Spanning Tree (MST)"
+description: "Finds the least-cost (or greatest-cost) spanning sub-graph across weakly connected components."

32-40: Table default for weightAttribute is unclear
“Unweighted” isn’t a real default value. Say None or leave empty so users know they can omit it.


52-74: Minor Cypher style nits in sample graph
Comma-terminated last line before RETURN *, and skipping rE in the edge sequence look untidy and distract readers. Consider:

  1. Drop the trailing comma after the final edge.
  2. Rename rFrE for consistent sequencing.

76-76: Remove trailing colon to silence markdownlint (MD026)
Headings shouldn’t end with punctuation.

-## Examples:
+## Examples
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📥 Commits

Reviewing files that changed from the base of the PR and between 1acf46c and 1142822.

⛔ Files ignored due to path filters (2)
  • images/city_mst.png is excluded by !**/*.png
  • images/city_plan.png is excluded by !**/*.png
📒 Files selected for processing (1)
  • algorithms/mst.md (1 hunks)
🧰 Additional context used
🪛 LanguageTool
algorithms/mst.md

[grammar] ~89-~89: Ensure spelling is correct
Context: ...## Expected Results The algorithm would yeild the following edge objects and their we...

(QB_NEW_EN_ORTHOGRAPHY_ERROR_IDS_1)

🪛 markdownlint-cli2 (0.17.2)
algorithms/mst.md

76-76: Trailing punctuation in heading
Punctuation: ':'

(MD026, no-trailing-punctuation)


88-88: Heading levels should only increment by one level at a time
Expected: h3; Actual: h4

(MD001, heading-increment)

🪛 GitHub Actions: spellcheck
algorithms/mst.md

[error] 1-1: Spelling errors detected: 'subgraph', 'yeild'. Please correct the spelling mistakes.

Comment on lines 88 to 90
#### Expected Results
The algorithm would yeild the following edge objects and their weights:

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⚠️ Potential issue

Heading level jump & spelling error break CI

  • #### Expected Results skips a level (MD001).
  • “yeild” → “yield” fails the spell-checker.
-#### Expected Results
-The algorithm would yeild the following edge objects and their weights:
+### Expected Results
+The algorithm would yield the following edge objects and their weights:
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
#### Expected Results
The algorithm would yeild the following edge objects and their weights:
### Expected Results
The algorithm would yield the following edge objects and their weights:
🧰 Tools
🪛 LanguageTool

[grammar] ~89-~89: Ensure spelling is correct
Context: ...## Expected Results The algorithm would yeild the following edge objects and their we...

(QB_NEW_EN_ORTHOGRAPHY_ERROR_IDS_1)

🪛 markdownlint-cli2 (0.17.2)

88-88: Heading levels should only increment by one level at a time
Expected: h3; Actual: h4

(MD001, heading-increment)

🤖 Prompt for AI Agents
In algorithms/mst.md around lines 88 to 90, fix the heading level by changing
the heading from #### to ### or another appropriate level to avoid skipping
levels, and correct the spelling mistake by replacing "yeild" with "yield" to
pass the spell-checker.

Comment on lines 20 to 23
MST first assigns each node to its own component. It iteratively scans for the minimum edges linking nodes across different components and merges them, ignoring the direction of edges throughout the process. The algorithm terminates when no further merges occur, producing a collection of trees.

The procedure finds a minimum or maximum weight spanning tree based on the specified `objective` and optimizes for the given `weightAttribute`. If no attribute is given, MST returns any collection of spanning trees. If any specified edges do not have the given weight attribute, or the value of the attribute is non-numeric, then they are treated as if they had infinite weight. Such an edge would only be included in the minimum spanning tree if no other edges with a valid weight attribute bridge the components it connects.

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🛠️ Refactor suggestion

Infinite-weight rule is ambiguous for objective: "maximize"
Treating missing / non-numeric weights as “infinite” works for minimisation, but for maximisation you actually want them to behave as negative infinity so they never get selected. Spell this out (or state that they are excluded) to avoid user confusion & silent logic bugs.

-If any specified edges do not have the given weight attribute, or the value of the attribute is non-numeric, then they are treated as if they had infinite weight.
+If an edge lacks the attribute or the value is non-numeric, it is treated as:
+* `+∞` when `objective = "minimize"`  
+* `−∞` (effectively excluded) when `objective = "maximize"`.
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
MST first assigns each node to its own component. It iteratively scans for the minimum edges linking nodes across different components and merges them, ignoring the direction of edges throughout the process. The algorithm terminates when no further merges occur, producing a collection of trees.
The procedure finds a minimum or maximum weight spanning tree based on the specified `objective` and optimizes for the given `weightAttribute`. If no attribute is given, MST returns any collection of spanning trees. If any specified edges do not have the given weight attribute, or the value of the attribute is non-numeric, then they are treated as if they had infinite weight. Such an edge would only be included in the minimum spanning tree if no other edges with a valid weight attribute bridge the components it connects.
The procedure finds a minimum or maximum weight spanning tree based on the specified `objective` and optimizes for the given `weightAttribute`. If no attribute is given, MST returns any collection of spanning trees.
If an edge lacks the attribute or the value is non-numeric, it is treated as:
* `+∞` when `objective = "minimize"`
* `−∞` (effectively excluded) when `objective = "maximize"`.
Such an edge would only be included in the minimum spanning tree if no other edges with a valid weight attribute bridge the components it connects.
🤖 Prompt for AI Agents
In algorithms/mst.md around lines 20 to 23, clarify the handling of missing or
non-numeric weight attributes for the "maximize" objective. Update the text to
specify that for maximization, such edges should be treated as having negative
infinity weight or be excluded entirely, ensuring they are never selected. This
will prevent ambiguity and potential logic errors when maximizing the spanning
tree weight.

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Actionable comments posted: 0

🧹 Nitpick comments (4)
algorithms/msf.md (4)

76-76: Remove trailing colon in heading for Markdown-lint compliance

Heading ## Examples: ends with a colon, triggering MD026. Drop the colon to silence the linter and keep style consistent with other docs.

-## Examples:
+## Examples

88-88: Fix heading level jump (#######)

#### Expected Results skips a level after ## Examples. Use ### to increment by one, satisfying MD001.

-#### Expected Results
+### Expected Results

89-89: Correct typo “yeild” → “yield”

Simple spelling error in prose.

-The algorithm would yeild the following edge objects and their weights:
+The algorithm would yield the following edge objects and their weights:

55-74: Clarify relationship direction vs. algorithm semantics

The Cypher sample creates directed ROAD / TRAM relationships (-->). Because MSF treats edges as undirected, it may confuse readers why directions are specified. Consider adding a sentence before or after the block to clarify that the procedure ignores direction, or switch to -[:ROAD]- style.

📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 1142822 and 06e3b0b.

⛔ Files ignored due to path filters (1)
  • images/city_msf.png is excluded by !**/*.png
📒 Files selected for processing (1)
  • algorithms/msf.md (1 hunks)
🧰 Additional context used
🪛 LanguageTool
algorithms/msf.md

[grammar] ~89-~89: Ensure spelling is correct
Context: ...## Expected Results The algorithm would yeild the following edge objects and their we...

(QB_NEW_EN_ORTHOGRAPHY_ERROR_IDS_1)

🪛 markdownlint-cli2 (0.17.2)
algorithms/msf.md

76-76: Trailing punctuation in heading
Punctuation: ':'

(MD026, no-trailing-punctuation)


88-88: Heading levels should only increment by one level at a time
Expected: h3; Actual: h4

(MD001, heading-increment)

🔇 Additional comments (2)
algorithms/msf.md (2)

82-83: Verify image paths

../images/city_plan.png and ../images/city_msf.png may break if the docs site’s build moves the Markdown file. Confirm the relative path is valid in the final site hierarchy or use an absolute docs-relative path.


1-90: Overall: solid, well-structured doc

Content reads clearly, parameters & returns are explicit, and examples are practical. With the minor polish above, it’s good to merge.

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