Description Usage Arguments Value References See Also Examples

Simpson's interaction index measures the probability that randomly selected individuals are not in the same group.

1 | ```
ISimpson(x)
``` |

`x` |
- an object of class matrix (or which can be coerced to that class), where each column represents the distribution of a group within spatial units. The number of columns should be greater than 1 (at least 2 groups are required). You should not include a column with total population, because this will be interpreted as a group. |

Simpson's interaction index

Simpson E. H. (1949) *Measurement of diversity*.
Nature 163:688

Social diversity indices:
`HShannon`

, `NShannon`

,

Multi-group indices:
`PMulti`

, `GiniMulti`

, `DMulti`

,
`HMulti`

, `CMulti`

, `RelDivers`

1 2 |

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