Examples
Examples
Try the starting example
- JSON samples as species-ID arrays
- [["oak","pine"],["pine","birch"],["maple"]]
- Permutation replicates
- 100
- Seed
- 42
- Accumulation [samples,mean richness,min,max]
- [[1,1.64,1,2],[2,3,3,3],[3,4,4,4]]
- Total observed richness
- 4
Try another scenario
- JSON samples as species-ID arrays
- [["oak","pine"],["pine","birch"],["maple"]]
- Permutation replicates
- 100
- Seed
- 43
- Accumulation [samples,mean richness,min,max]
- [[1,1.76,1,2],[2,3,3,3],[3,4,4,4]]
- Total observed richness
- 4
Calculation method
Calculation method
Accumulation [samples,mean richness,min,max]
Seeded Fisher–Yates permutations of sample order; union observed species at each step.
Total observed richness
Species union over all samples.
Symbols and units
- a
- JSON samples as species-ID arrays
- b
- Permutation replicates
- c
- Seed
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions & limits
Assumptions & limits
- Samples, observed species, permutations, seed. Returns Accumulation curve and variability. All coefficients and observations are user supplied; results describe only the stated mathematical model. Quantities are deterministic calculations from supplied observations and assumptions; no external data is fetched. Supported limits: Finite inputs only; numeric fields bounded as labelled. Lists and JSON records are limited to 256 entries unless a stricter tool bound is stated. No automatic design approval, legal conclusion, treatment recommendation or safety certification. Permutation replicates: minimum 1, maximum 1000. Seed: minimum 0, maximum 4294967295.
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.
Further reading
Background reading; this does not imply endorsement or independent review of SumFizz.