migration.rate {migration.indices} | R Documentation |
ANMR = 100\frac{ \sum_i |D_i - O_i| }{ \sum_i P_i }
where D_i
is the total inflows to zone i
and O_i
is the total outflows from zone i
.
migration.rate(m, PAR)
m |
migration matrix |
PAR |
population at risk |
Martin Bell and Salut Muhidin (2009) Cross-National Comparisons of Internal Migration. Research Paper. UNDP. https://hdr.undp.org/content/cross-national-comparisons-internal-migration
data(migration.world)
migration.rate(migration.world, 6e+9)