LTabr {DemoDecomp} R Documentation

## an abridged lifetable based on M(x)

### Description

Implements the abridged lifetable formulas given in the supplementary material to Andreev et. al. (2012). An entire lifetable is calculated, but only life expectancy at birth is returned.

### Usage

LTabr(Mx, Age = c(0, 1, cumsum(rep(5, length(Mx) - 2))), radix = 1e+05)


### Arguments

 Mx numeric vector of abridged mortality rates. Age integer, abridged age lower bounds. radix numeric. Can be anything positive.

### Details

Chiang's a(x) is assumed in the following way: a(0) = 0.07 + 1.7 * M(0), a(1) = 1.6, a(\omega) = \frac{1}{M(\omega)}, and all others are assumed at mid interval. The last age is assumed open. Everything else is pretty standard.

### Value

numeric life expectancy at birth

### References

Andreev EM, Shkolnikov VM and Begun AZ (2002). “Algorithm for decomposition of differences between aggregate demographic measures and its application to life expectancies, healthy life expectancies, parity-progression ratios and total fertility rates.” Demographic Research, 7, pp. 499–522. Andreev EM and Shkolnikov VM (2012). “An Excel spreadsheet for the decomposition of a difference between two values of an aggregate demographic measure by stepwise replacement running from young to old ages.” Max Planck Institute for Demographic Research (MPIDR Technical Report TR–2012–002).

[Package DemoDecomp version 1.0.1 Index]