Compute cohort index from age and period index — coh • bamp

Compute cohort index from age and period index

coh(agegroup, period, noa, periods_per_agegroup)

Arguments

agegroup: age group index
period: period index
noa: number of age groups in total
periods_per_agegroup: periods per age group

Value

cohort index

Examples

# last agegroup in first period equals first cohort
coh(10, 1, 10, 5)  
#> [1] 1

# first agegroup in last period equals last cohort 
coh(1, 8, 10, 5) 
#> [1] 53