lt_single_qx: calculate a single age lifetable from qx

In timriffe/DemoTools: Standardize, Evaluate, and Adjust Demographic Data

calculate a single age lifetable from qx

Description

Computes lifetable columns from single age qx by first computing 1ax, then computing 1mx from 1qx and 1ax, and finally passing the 1mx to the lt_single_mx() function

Usage

lt_single_qx(
  nqx,
  Age = 1:length(nqx) - 1,
  radix = 1e+05,
  a0rule = "ak",
  Sex = "m",
  region = "w",
  IMR = NA,
  mod = TRUE,
  SRB = 1.05,
  OAG = TRUE,
  OAnew = max(Age),
  extrapLaw = NULL,
  extrapFrom = max(Age),
  extrapFit = NULL,
  ...
)

Arguments

nqx	numeric. Vector of conditional death probabilities in abridged age classes.
Age	integer. A vector of ages of the lower integer bound of the age classes.
radix	numeric. Lifetable radix, l0. Default 100000.
a0rule	character. Either "ak" (default) or "cd".
Sex	character. Either male "m", female "f", or both "b".
region	character. North, East, South, or West: "n", "e", "s", "w". Default "w".
IMR	numeric. Infant mortality rate q0, in case available and nqx is not specified. Default NA.
mod	logical. If "un" specified for axmethod, whether or not to use Nan Li's modification for ages 5-14. Default TRUE.
SRB	the sex ratio at birth (boys / girls), default 1.05
OAG	logical. Whether or not the last element of nMx (or nqx or lx) is an open age group. Default TRUE.
OAnew	integer. Desired open age group (5-year ages only). Default max(Age). If higher then rates are extrapolated.
extrapLaw	character. If extrapolating, which parametric mortality law should be invoked? Options include "Kannisto", "Kannisto_Makeham", "Makeham", "Gompertz", "GGompertz", "Beard", "Beard_Makeham", "Quadratic". Default "Kannisto" if the highest age is at least 90, otherwise "makeham". See details.
extrapFrom	integer. Age from which to impute extrapolated mortality.
extrapFit	integer vector. Ages to include in model fitting. Defaults to all ages > =60.
...	Other arguments to be passed on to the MortalityLaw function.

Details

Similar to lt_abridged() details, forthcoming

Value

Lifetable in data.frame with columns

• Age integer. Lower bound of abridged age class,

• AgeInt integer. Age class widths.

• nMx numeric. Age-specific central death rates.

• nAx numeric. Average time spent in interval by those deceased in interval.

• nqx numeric. Age-specific conditional death probabilities.

• lx numeric. Lifetable survivorship

• ndx numeric. Lifetable deaths distribution.

• nLx numeric. Lifetable exposure.

• Sx numeric. Survivor ratios in uniform single-year age groups.

• Tx numeric. Lifetable total years left to live above age x.

• ex numeric. Age-specific remaining life expectancy.

timriffe/DemoTools documentation built on Oct. 14, 2024, 12:53 p.m.