Description
Divide their difference by elapsedSourceTime × suppliedTargetTimesPerSourceTime, both positive.
A cumulative counter can increase, wrap, or restart. The difference between two readings is meaningful only under an explicit rollover or reset model and compatible time units.
Divide their difference by elapsedSourceTime × suppliedTargetTimesPerSourceTime, both positive.
When to use this tool
Use Monotone Counter Rate Unit Factor when you need a supplied counter difference or rate convention.
How to use the tool and how it works
- Enter counterStart, counterEnd, elapsedSourceTime, suppliedTargetTimesPerSourceTime. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read ratePerTargetTime. Use the output convention below.
Require counterEnd ≥ counterStart. Divide their difference by elapsedSourceTime × suppliedTargetTimesPerSourceTime, both positive.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| counterStart | Counter Start | Required. Finite number. |
| counterEnd | Counter End | Required. Finite number. |
| elapsedSourceTime | Elapsed Source Time | Required. Finite number; strictly above 0. |
| suppliedTargetTimesPerSourceTime | Supplied Target Times Per Source Time | Required. Finite number; strictly above 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| ratePerTargetTime | Rate Per Target Time | Required. Finite number. |
{
"input": {
"counterStart": 100,
"counterEnd": 160,
"elapsedSourceTime": 2,
"suppliedTargetTimesPerSourceTime": 60
},
"output": {
"ratePerTargetTime": 0.5
}
}Limitations and assumptions
- The time factor belongs in the duration denominator; resets, wraps, and unit selection must be resolved externally.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Use reset events, wrap epochs, and monotonic timestamps to resolve ambiguous counter histories.
References
Similar or alternative tools
- Counter Reset Lower Bound
If after ≥ before, return their difference; otherwise mark resetDetected and use after as minimumIncrement.
- Microbial Diary Counter Reset Gap
Without resetOccurred, require current ≥ previous and subtract.