Description
Return RR duration and reciprocal beat rate from two sample markers.
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 RR duration and reciprocal beat rate from two sample markers.
When to use this tool
Use ECG Sample RR Interval Duration Factor when checking the stated cardiac-record indexing, timing, phase or coverage convention.
How to use the tool and how it works
- Enter firstPeak, secondPeak, sampleHz. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read samples, seconds, beatsPerMinute. Use the output convention below.
Return RR duration and reciprocal beat rate from two sample markers. Require whole firstPeak >= 0, secondPeak > first and sampleHz > 0; samples = second-first, seconds = samples/rate, beatsPerMinute = 60*rate/samples.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| firstPeak | First Peak | Required. Safe integer; minimum 0. |
| secondPeak | Second Peak | Required. Safe integer. |
| sampleHz | Sample Hz | Required. Finite number; strictly above 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| samples | Samples | Required. Safe integer. |
| seconds | Seconds | Required. Finite number. |
| beatsPerMinute | Beats Per Minute | Required. Finite number. |
{
"input": {
"firstPeak": 100,
"secondPeak": 600,
"sampleHz": 500
},
"output": {
"samples": 500,
"seconds": 1,
"beatsPerMinute": 60
}
}Limitations and assumptions
- This assumes correct consecutive R-peak markers and uniform sampling; no signal detection, rhythm diagnosis or rate suitability is provided.
- 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
- RR Interval Sample Count
Return whole sampling intervals and endpoint-policy sample count.
- ECG Sample To Time Factor
Map a signed sample-index difference to time.