# A function to compute Gorard's segregation index

### Description

Gorard's index is an alternative to `ISDuncan`

's
index, which measures the dissimilarity between the spatial
distribution of a group and the total population.

### Usage

1 | ```
Gorard(x)
``` |

### Arguments

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

### Value

a numeric vector containing the Gorard's segregation index value for each population group

### References

Gorard S. (2000) *Education and Social Justice*.
Cardiff, University of Wales Press

### See Also

One-group evenness indices:
`ISDuncan`

, `Gini`

, `Atkinson`

,
`HTheil`

, '`ISWong`

, `ISMorrill`

Between groups dissimilarity indices:
`DIDuncan`

, `Gini2`

,
`DIMorrill`

, `DIWong`

### Examples

1 2 |