naxCFMfromnmx: Calculate nax From nmx Using Constant Force of Mortality...
In jschoeley/pash: Pace-Shape Analysis of Life-tables

Description Usage Arguments Details Value

Get life-table nax values from nmx using the constant nmx assumption.

1	naxCFMfromnmx(nx, nmx, k, last_open)

`nx`	Width of age interval [x, x+n).
`nmx`	Mortality rate in age interval [x, x+nx).
`k`	Number of age groups.
`last_open`	Is the last age group open (TRUE) or closed (FALSE)?

For all age groups we calculate: nax = nx + 1/nmx - nx/(1 - exp(-nx*nmx))

If the last age group is open we calculate the last nax as the remaining life expectancy at x. Given the constant hazard assumption that is: nax[k] = 1/nmx[k]

The nax as a numeric vector of length(nx).

jschoeley/pash documentation built on May 20, 2019, 2:07 a.m.