A measured range whose upper end is below its lower end
quantity-range-reversedon by defaultJapanese / English
A measured range that ends lower than it starts, such as "-10 to -40 °C"
Example
How to fix
Check both values and their signs, and correct the wrong one or write the smaller one first.
Why it matters
When a measured range ends below where it starts ("Operating temperature: -10 to -40 °C", "Weight: 5–2 kg"), the reader has to ask which value is right and what the range is. It happens in a spec sheet when only one of the two values is edited, when a minus sign is added, or when the two are written the wrong way round. Two quantities in one unit are read as a range when only a range mark (–, —) or "to" stands between them, including a range that writes its unit once ("30–10 cm"). A negative number is read with its sign, so -10 to -40 °C ends below its start and -40 to -10 °C does not. A hyphen right after a number ("5-10 kg") is a range mark, not a minus sign. Two quantities on one line labelled minimum and maximum are compared too.
What it does not flag
Two quantities in a sentence with a word that changes a value or names a descending order ("cooled from 40 °C to 10 °C", "from 100 m down to 10 m", "countdown"), two quantities in different units, two quantities with words between them, and a sum are not compared. Percentages and numbers without a unit are not read.
Turning it off or relaxing it
Technical details
- Layer
- L3
- Status
- stable
- Severity
- warning
- Languages
- Japanese and English
- Suited to
- business, technical, blog, legal, docs, academic, literature, speech
Levels
Set a level for this rule under rules in chaff.yaml. With nothing set, it runs at the level its genre gives it (see By genre below).
| strict | error |
|---|---|
| normal | warning |
| relaxed | info |
This rule has no limit to count to. A level sets how a finding is marked: relaxed keeps the finding and marks it a step lower.
By genre
- Runs by default in
- technical/spec, technical/readme, blog/tech, blog/essay, blog/owned-media, business/proposal, business/report, business/email, business/press-release, business/meeting-notes, legal/contract, legal/statute, legal/judgment, legal/patent, docs/manual, docs/faq, docs/glossary, academic/paper, speech/address, speech/transcript
- Turned off by the genre in
- literature/fiction, literature/essay, literature/poetry, literature/play
Message
The range "{range}" ends below where it starts
This page is built from the rule's definition file:packages/chaff/rules/quantity-range-reversed.yaml