migration.connectivity {migration.indices}R Documentation

Migration Connectivity Index

Description

The Migration Connectivity Index measures "the proportion of the total number of potential interregional flows which are not zero":

IMC=ijiMCijn(n1)I_{MC} = \sum_i \sum_{j \neq i} \frac{MC_{ij}}{n(n-1)}

where MCijMC_{ij} is 0 if the flow from ii to jj is zero and let it be 1 otherwise.

Usage

migration.connectivity(m)

Arguments

m

migration matrix

Value

A number between 0 and 1 where zero shows no connections between regions.

References

Examples

data(migration.hyp)
migration.connectivity(migration.hyp)
data(migration.world)
migration.connectivity(migration.world)

[Package migration.indices version 0.3.1 Index]