Sample

Scalabrio150

Human rating uses the original dataset scale.

DatasetScalabrino
Human4.78
Lines11

Scores

MethodScoreScaleDataset rank
(0–100)
Posnett0.8370–1; higher is more readable
95.0Δ 4.3
Scalabrino0.8990–1; higher is more readable
94.0Δ 5.3
Dorn0.8230–1; higher is more readable
95.5Δ 3.8
Mi0.7240–1; higher is more readable
93.0Δ 6.3
LLOC5Logical lines; fewer is more readable
91.2Δ 8.0
DeepSeek V4 Pro180–20; mean of three runs
98.5Δ 0.8
GPT-6.1 Sol180–20; mean of three runs
83.7Δ 15.6
BTTF0.8440–1; higher is more readable
99.0Δ 0.3
Human4.781–5; original rating
99.2

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Source regions

Feature contributions

Feature contributions

FeatureValueContribution
(log-odds)
Byte entropyHow varied the bytes in the source text are. Repeated bytes give a lower value; a more even mixture gives a higher value.4.521−6.782
Halstead volumeHow much symbolic information the code contains. It combines the total number of operators and values with the number of distinct ones.146.946−4.849
Source linesThe number of non-empty source lines.11+4.4

Intercept 8.87 + feature contributions = 1.639 (log-odds).
Score = sigmoid(1.639) = 0.837.

Score0.899

Feature contributions

FeatureValueContribution
(log-odds)
Identifier layout (horizontal)How rapidly the visual pattern of identifier characters changes from left to right. It measures spatial frequency, not the meaning of the names.27.455+2.502
Comment layout frequencyHow frequently the layout switches between lines containing only comments or whitespace and lines containing code.1+1.001
Comment layout (horizontal)How rapidly the visual pattern of comment characters changes from left to right.0−0.804
Indentation frequencyHow rapidly indentation changes from line to line.1−0.703
Operator visual areaThe share of the code’s visual area occupied by operators such as +, =, and *.0.164−0.653
Number layout frequencyHow rapidly the number of numeric values per line changes through the code.1+0.398
Identifier layout (vertical)How rapidly the visual pattern of identifier characters changes from top to bottom.9.806−0.273

Intercept 0.07 + feature contributions = 1.538 (log-odds).
Score = sigmoid(1.538) = 0.823.

Score0.724
Score5
Run 1

The code is highly readable. It has a clear, logical structure with a single guard clause that avoids unnecessary nesting. The intent is obvious: to close a reader if it exists. The action granularity is good, with one clear action per line. The method is concise and not unnecessarily long. The reading flow is natural: check for null, close, handle exception. The only minor deduction is the empty catch block with an ignored exception, which could be slightly improved with a comment explaining why the exception is intentionally ignored, but this is a minor issue that doesn't significantly impact readability.

Run 2

The code is highly readable. It has a clear, logical structure with a single early return guard clause. Nesting is minimal, with only a try-catch block. The intent—releasing a reader resource—is obvious despite the slightly unusual method name. The code is concise, with no unnecessary lines. Each action is on its own line, improving clarity. Reading flows naturally: check null, close, ignore exception. The only minor deduction is the use of a generic 'ignore' variable name for the caught exception, which is acceptable but could be slightly more descriptive.

Run 3

The code is highly readable. It has a clear, flat structure with minimal nesting. The intent is obvious: safely release a reader resource. The method is concise and each action is on its own line, aiding comprehension. The guard clause (`if (reader == null) return;`) is a clean pattern that avoids deeper nesting. The only minor drawback is the empty catch block, which silently swallows an IOException; a brief comment explaining why this is acceptable would improve clarity.

Run 1

Code Structure: logically organized into a null guard followed by resource cleanup. Nesting: shallow, with an early return avoiding an extra conditional level. Clarity of intent: release() and reader.close() clearly convey cleanup; naming the exception ignore signals intentional suppression, though its rationale is undocumented. Code length: concise, with no unnecessary statements. Action granularity: each statement performs one action. Reading flow: natural progression from checking resource availability to closing it. Minor drawbacks are the empty catch block, which obscures error-handling rationale, and slightly distracting spacing.

Run 2

Code Structure: Logically organized into a null guard followed by resource cleanup. Nesting: Shallow, with an early return avoiding unnecessary nesting. Clarity of intent: The release method clearly closes the reader; naming the caught exception 'ignore' signals deliberate suppression, although the reason is undocumented. Code length: Concise, with no unnecessary statements. Action granularity: Each statement performs one action. Reading flow: Natural progression from checking availability to closing the resource and handling a possible exception. The empty catch block slightly reduces readability because it does not explain why ignoring a close failure is acceptable.

Run 3

Code Structure: A straightforward null check followed by resource cleanup is logically organized. Nesting: The early return keeps nesting shallow. Clarity of intent: release() and reader.close() clearly communicate cleanup, though silently ignoring IOException leaves the error-handling rationale unstated. Code length: Short and appropriately concise. Action granularity: Each statement performs one action. Reading flow: Execution proceeds naturally from checking resource availability to closing it; minor spacing inconsistencies and the empty catch block slightly reduce readability.