Forms a dataframe with columns id, birth, sex,
and age for those animals with a status of Alive in the
pedigree.
Value
A pedigree with status column added, which describes the
animal as ALIVE or DECEASED and a age column added,
which has the animal's age in years or NA if it cannot be calculated.
The exit column values have been remapped to valid dates or NA.
Details
The lubridate package is used here because of the way the modern Gregorian calendar is constructed, there is no straightforward arithmetic method that produces a person’s age, stated according to common usage — common usage meaning that a person’s age should always be an integer that increases exactly on a birthday.
Examples
library(nprcgenekeepr)
ped <- getPyramidAgeDist()