Diversity Index with Simpson Method
Find chance say two different sampled items belong to different categories.
Your numbers
Gini–Simpson diversity value
Use consistent units. Result follow the assumptions wey you enter.
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Formula
D=1−Σnᵢ(nᵢ−1)/[N(N−1)]
Find chance say two different sampled items belong to different categories.
Example wey show the calculation
- Whole-number counts for categories
- 10, 10, 10
- Gini–Simpson diversity value
- 0.689655172414
Where e fit work and limits
Use consistent units. Result follow the assumptions wey you enter.
We check inputs for missing values and allowed ranges. Result wey pass the finite numeric range no go show. Rounding affect wetin display, while calculation use the model numeric precision.
Check your units and assumptions before you rely on result. Changing label no convert currency or physical unit.
Version of di formula: 0e3740732631 · Example don get check: