netmigration: Calculate net migration from mortality and fertility data
Description
Function to compute the net number of migrants in each year and for each age,
based on the total population numbers, deaths and births in each year.
Usage
netmigration(mort, fert, mfratio = 1.05)
Arguments
mort
Demogdata object of type "mortality"
fert
Demogdata object of type "fertility"
mfratio
Male-female ratio to be used in simulating births.
Value
Object of class “demogdata” with the following components:
year
Vector of years
age
Vector of ages
rate
List containing matrices of net migration numbers (not "rates") with with one age group per
row and one column per year. Names of matrices are the same as for mort$rate.
pop
List containing matrices of populations in same form as rate and containing population numbers.