| migration.weighted.gini.in | R Documentation |
The Migration-weighted In-migration Gini Index is a weighted version of the In-migration Field Gini Index (migration.gini.in) "according to the zone of destination's share of total migration and the mean of the weighted values is computed as":
MWG^I = \frac{ ∑_j G^I_j \frac{∑_j M_{ij}}{∑_{ij} M_{ij}}}{n}
migration.weighted.gini.in(m, mgi = migration.gini.in(m))
m |
migration matrix |
mgi |
optionally passed (precomputed) Migration In-migration Gini Index |
M. Bell, M. Blake, P. Boyle, O. Duke-Williams, P. Rees, J. Stillwell and G. Hugo (2002) Cross-National Comparison of Internal Migration. Issues and Measures. Journal of the Royal Statistical Society. Series A (Statistics in Society) 165, 435–464
migration.gini migration.gini.in migration.weighted.gini.out migration.weighted.gini.mean
data(migration.hyp) migration.weighted.gini.in(migration.hyp) # 0.1222222 migration.weighted.gini.in(migration.hyp2) # 0.05238095