Description
Compare supplied research cycle phases with a positive half-cycle tie convention.
Movement research distinguishes elapsed time, active time, cycle phase, measured force, and assessment-score conventions. Normalizing or remapping these quantities can help compare records when their units and definitions agree. A local arithmetic term does not by itself validate a functional assessment or an exercise program.
Compare supplied research cycle phases with a positive half-cycle tie convention.
When to use this tool
Use Motion Repetition Phase Gap when you need this motion, timing, force, annotation, or score-mapping component for supplied research records.
How to use the tool and how it works
- Enter phaseFraction, referenceFraction. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read signedShortestGap. Use the output convention below.
Require phaseFraction and referenceFraction within zero through one. Wrap their difference modulo one and subtract one when the positive gap exceeds 0.5; return signedShortestGap.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| phaseFraction | Phase Fraction | Required. Finite number; minimum 0; maximum 1. |
| referenceFraction | Reference Fraction | Required. Finite number; minimum 0; maximum 1. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| signedShortestGap | Signed cycle fraction in (-0.5,0.5], with a positive half-cycle tie. | Required. Finite number. |
{
"input": {
"phaseFraction": 0.9,
"referenceFraction": 0.1
},
"output": {
"signedShortestGap": -0.19999999999999996
}
}Limitations and assumptions
- Zero and one describe the same cyclic phase. An exact half-cycle tie returns positive 0.5; fractions are supplied rather than extracted from motion.
- 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. Signed zero is exported as zero.
Alternative or Complementary methods
Use the intended assessment or motion-analysis protocol with verified timing, units, and event annotations. A complete interpretation needs the relevant measurement properties and task context beyond this local calculation.
References
Similar or alternative tools
- Repetition Count Unknown Trial Base
Research repetition denominators with explicit unknown-trial inclusion.
- Research Motion Cycle Duration
Supplied research motion-cycle timing without a movement quality or exercise prescription.