Description
Propagate a supplied truncated or nearest-sample marker convention without evaluating a maneuver.
A bench or research calculation starts from supplied measurements, reference values, and unit conventions. A transformed value, timing difference, or support fraction describes that model; its clinical meaning depends on measurement validity and a separate professional assessment.
Propagate a supplied truncated or nearest-sample marker convention without evaluating a maneuver.
When to use this tool
Use it for expiratory stop marker precision when the required inputs and conventions are already available.
How to use the tool and how it works
- Enter markerSeconds, samplePeriod, truncated. Use the stated units and boundary conventions.
- Run the calculation. Correct any input error before interpreting a result.
- Read lowerSeconds, upperSeconds. Inspect any known, defined, inclusion, or boundary flags before interpreting numeric values.
Require positive samplePeriod. For truncated markers return bounds markerSeconds through markerSeconds+samplePeriod; otherwise return markerSeconds±samplePeriod/2.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| markerSeconds | Marker Seconds | Required. Finite number. |
| samplePeriod | Sample Period | Required. Finite number; strictly above 0. |
| truncated | Truncated | Required. Boolean. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| lowerSeconds | Lower Seconds | Required. Finite number. |
| upperSeconds | Upper Seconds | Required. Finite number. |
{
"input": {
"markerSeconds": 5,
"samplePeriod": 0.2,
"truncated": true
},
"output": {
"lowerSeconds": 5,
"upperSeconds": 5.2
}
}Limitations and assumptions
- These are numeric precision envelopes, without endpoint-closure flags or a probability distribution. The tool does not detect expiratory termination or verify the supplied marker convention.
- The field tables describe structural bounds; the mechanics also state cross-field requirements. Malformed input shapes, disallowed keys, and invalid domains cause input errors. Results must remain finite and within the declared output contract. A successful false flag or zero placeholder is distinct from an error.
- Numeric arithmetic uses binary floating point. Exact comparisons have no hidden tolerance or decimal rounding; negative zero is exported as zero. Decimal-text integer operations retain the exactness specifically stated above.
Alternative or Complementary methods
For expiratory stop marker precision, check the source records and the supplied rule before comparing the result with another method. Use an appropriately validated measurement or analysis method for clinical interpretation.
References
Similar or alternative tools
- Respiratory Cycle Inspiratory Expiratory Ratio
Supplied phase-duration arithmetic with pause time kept separate, without selecting ventilation settings or normal ranges.
- Breath Reference Zero Gap
Calculate breath reference zero gap from explicit caller-supplied inputs.