Subtract pdiffYear for genetic groups of parents of bulls

Distinction between parents of bulls and parents of cows. Because the parent of sires reach the same genetic level earlier than parents of cows.

substract_diffYear(
  psInputFile,
  pdiffYear = 3,
  pglobal_minyear = 1900,
  pglobal_maxyear = 2100,
  pbLog = FALSE
)

Arguments

psInputFile	List of genetic group
pglobal_minyear	global minimum year
pglobal_maxyear	globar maximum year
ppdiffYear	difference in birth years between parents of bulls and parents of dams