Description Usage Arguments Details Value Author(s) References

Calculates the Farina index based on a population vector and a vector for the representatives

1 | ```
Farina(Z,R)
``` |

`Z` |
Population vector |

`R` |
Vector for the representatives |

The order of the groups in he population vector and the vector for the representatives needs to be the same. If there are groups A, B, C in the population, both vectors need to cover their proportion in the same order.

The Farina index is referred to as cosine proportionality scores by Koppel and Diskin (2009).

A single score given the population and representatives

Didier Ruedin

Koppel, M., and A. Diskin. (2009) Measuring disproportionality, volatility and malapportionment: axiomatization and solutions. Social Choice and Welfare 33, no. 2: 281-286.

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