Individuals-chart reference limits
Estimate within-process dispersion and individual observation limits from adjacent baseline measurements.
Your entries stay in this page’s memory and are not submitted to us. Downloads are generated locally. Reloading or leaving the page clears your entries. Do not enter patient information.
Enter 3–500 comma-separated measurements from one comparable, stable process. Keep acquisition order.
The starting values are hypothetical. Results update as you edit. Use aggregate or synthetic inputs only.
Calculation results
- Baseline mean
- 11.5
- Average moving range
- 1.6666667
- Estimated within-process SD
- 1.4775414
- Lower individuals limit
- 7.0673759
- Upper individuals limit
- 15.932624
How to interpret the output
Uses the moving range of length two and d₂ = 1.128. Short baselines are illustrative. Dependence, changing conditions and substantial nonnormality affect interpretation. Limits are descriptive process references. Method checked 9 November 2026.
Method reference