Description
Return valid-signal support within a supplied beat window.
Cardiac recordings use sample indexes, time origins, event markers and observation windows. A sample-grid count, interval conversion or phase comparison operates on supplied records; it does not detect an actual heartbeat, validate an ECG or determine a clinical diagnosis.
Return valid-signal support within a supplied beat window.
When to use this tool
Use Beat Window Support Share when checking the stated cardiac-record indexing, timing, phase or coverage convention.
How to use the tool and how it works
- Enter beatDurations, inWindow, validSignal. Follow any array-alignment requirements below. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read windowDuration, validBeatDuration, share, defined. Inspect defined before interpreting the associated values.
Return valid-signal support within a supplied beat window. Require aligned nonnegative beatDurations/inWindow/validSignal; sum window time and time with both flags, divide or return zero with defined false.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| beatDurations | Beat Durations | Required. Array of finite number; minimum 0; maximum items 256. |
| inWindow | In Window | Required. Array of boolean; maximum items 256. |
| validSignal | Valid Signal | Required. Array of boolean; maximum items 256. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| windowDuration | Window Duration | Required. Finite number. |
| validBeatDuration | Valid Beat Duration | Required. Finite number. |
| share | Dimensionless numerator/denominator ratio under the explicit basis above. | Required. Finite number. |
| defined | Reporting flag under the explicit denominator or information policy above; inspect any zero placeholder or policy-defined value. | Required. Boolean. |
{
"input": {
"beatDurations": [
2,
3,
5
],
"inWindow": [
true,
true,
false
],
"validSignal": [
true,
false,
true
]
},
"output": {
"windowDuration": 5,
"validBeatDuration": 2,
"share": 0.4,
"defined": true
}
}Limitations and assumptions
- Overlapping durations are not deduplicated; supplied flags do not establish actual signal quality, rhythm or clinical adequacy.
- 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
Inspect the actual recording, acquisition settings and event annotations; use validated analysis and qualified clinical interpretation for patient-related decisions.
References
Similar or alternative tools
- Cardiology Waveform One Beat Baseline
Return baseline-corrected beat samples, rectangular area and mean.
- RR Interval Sample Count
Return whole sampling intervals and endpoint-policy sample count.