Displaying 1 result from an estimated 1 matches for "bothsex_gompsurv".
2012 Apr 22
1
using a loop with an integration
...he life expectancy at any age. Is there a way
I can use a loop with the integration that will quickly return life
expectancy over a range of ages, say 0 to 80, so that I don't have to
manually type in the age in which I'm interested? Please see the code
below. Thanks so much.
--Trey
hk.bothsex_Gompsurv <- function (t)
{
x=c(0.02342671, 0.05837508)
a3<-x[1]
b3<-x[2]
shift<-15
S.t<-exp(a3/b3*(1-exp(b3*(t-shift))))
return<-S.t
}
integrate(hk.bothsex_Gompsurv,0,Inf)$value/hk.bothsex_Gompsurv(0) # life
expectancy at birth (change lower limit of integral and correspond...