Examples
Examples
Try the starting example
- Community A species IDs comma separated
- oak,pine,birch
- Community B species IDs comma separated
- pine,birch,maple
- Jaccard similarity
- 0.5
- Jaccard dissimilarity
- 0.5
- Shared species count
- 2
Try another scenario
- Community A species IDs comma separated
- oak,pine,birch
- Community B species IDs comma separated
- oak,pine,birch,maple
- Jaccard similarity
- 0.75
- Jaccard dissimilarity
- 0.25
- Shared species count
- 3
Calculation method
Calculation method
Jaccard similarity
Distinct shared species / distinct union species.
Jaccard dissimilarity
1−similarity.
Shared species count
Size of species intersection; duplicates collapse.
Symbols and units
- a
- Community A species IDs comma separated
- b
- Community B species IDs comma separated
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
- Species presence lists. Returns Similarity and dissimilarity. 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.
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.