lifecontingencies (version 1.3.1)

pxt: Functions to evaluate survival, death probabilities and deaths.

Description

These functions evaluate raw survival and death probabilities between age x and x+t

Usage

dxt(object, x, t, decrement)
pxt(object, x, t, fractional = "linear", decrement)
qxt(object, x, t, fractional = "linear", decrement)

Arguments

object

A lifetable object.

x

Age of life x.

t

Period until which the age shall be evaluated. Default value is 1.

fractional

Assumptions for fractional age. One of "linear", "hyperbolic", "constant force".

decrement

The reason of decrement (only for mdt class objects). Can be either an ordinal number or the name of decrement

Value

A numeric value representing requested probability.

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.

Details

Fractional assumptions are: -linear: linear interpolation between consecutive ages. -constant force of mortality: constant force of mortality. -hyperbolic: Balducci assumptions. See references for details.

References

Actuarial Mathematics (Second Edition), 1997, by Bowers, N.L., Gerber, H.U., Hickman, J.C., Jones, D.A. and Nesbitt, C.J.

See Also

exn, '>lifetable

Examples

# NOT RUN {
	#dxt example
	data(soa08Act)
	dxt(object=soa08Act, x=90, t=2)
	#qxt example
	qxt(object=soa08Act, x=90, t=2)
	#pxt example
	pxt(object=soa08Act, x=90, t=2, "constant force" )
	#add another example for MDT
# }