SetRoundingLaw.RdThe rounding law determines how the system handles rounding for processes that in nature would always return integer counts, such as births.
SetRoundingLaw(value = NULL)Rounding law. Allowed values are "early", "late", "none" and NULL
Previous rounding law value (invisible)
For example: Take 35 age groups, each containing 100 fertile women, and each with a fertility rate of 0.0564 births/woman/year. Say we want to calculate the total number of births for a year.
"early" law: N = round(100 * 0.0564) * 35 = 210 "late" law: N = round(100 * 0.0564 * 35) = 197 "none" law: N = 100 * 0.0564 * 35 = 197.4
Rounding laws apply to several PACE-HRH calculations (e.g. population predictions). In many cases there is no difference between "early" and "late" laws.
By default the system is set up with the "early" rounding law.
if (FALSE) {
pacehrh::SetRoundingLaw("none")
}