exn: Function/method to calculate the expected life.
Description
This method calculates the expected life span between ages x and x+n.
Usage
exn(object, x, n,type="curtate")
Arguments
object
A lifetable object.
x
Age from which the life span should be calculated.
n
Time until which the expected life should be calculated. Assumed omega - x whether missing.
type
Either complete or curtate
Value
A numeric value representing the expected life span.
Warning
The function is provided as is, without any warranty regarding the accuracy of calculations. The author disclaims any liability for eventual
losses arising from direct or indirect use of this software.
References
Actuarial Mathematics (Second Edition), 1997, by Bowers, N.L., Gerber, H.U., Hickman, J.C.,
Jones, D.A. and Nesbitt, C.J.