Description Objects from the Class Slots Methods Warning Note Author(s) References See Also Examples

`lifetable`

objects allow to define and use life tables with the aim to evaluate
survival probabilities and mortality rates easily.
Such values represent the building blocks used to estimate life insurances actuarial mathematics.

Objects can be created by calls of the form `new("lifetable", ...)`

.
Two vectors are needed. The age vector and the population at risk vector.

`x`

:Object of class

`"numeric"`

, representing the sequence 0,1,*…, ω*`lx`

:Object of class

`"numeric"`

, representing the number of lives at the beginning of age*x*. It is a non increasing sequence. The last element of vector x is supposed to be > 0.`name`

:Object of class

`"character"`

, reporting the name of the table

- coerce
`signature(from = "lifetable", to = "data.frame")`

: method to create a data - frame from a lifetable object- coerce
`signature(from = "lifetable", to = "markovchainList")`

: coerce method from`lifetable`

to`markovchainList`

- coerce
`signature(from = "lifetable", to = "numeric")`

: brings to numeric- coerce
`signature(from = "data.frame", to = "lifetable")`

: brings to life table- getOmega
`signature(object = "lifetable")`

: returns the maximum attainable life age- plot
`signature(x = "lifetable", y = "ANY")`

: plot method- head
`signature(x = "lifetable")`

: head method`signature(x = "lifetable")`

: method to print the survival probability implied in the table- show
`signature(object = "lifetable")`

: identical to`plot`

method- summary
`signature(object = "lifetable")`

: it returns summary information about the object

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.

`t`

may be missing in `pxt`

, `qxt`

, `ext`

. It assumes value equal to 1 in such case.

Giorgio A. Spedicato

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

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