dnormal.RdDouble normal ogive
# S4 method for FLQuant,FLPar
dnormal(age, params, ...)FLQuant or FLCohort
FLPar with parameters a1 age at maximum, sl SD for lefthand limb and sr SD for righthand limb.
any other arguments
Returns an object of same class as age e.g. FLQuant
if (FALSE) {
params=FLPar(a1=4,sl=2,sr=5000)
dnormal(FLQuant(1:10,dimnames=list(age=1:10)),params)
}