Life table

Usage

LT(age, sex = "m", mx, ax = NULL, w = NULL, l0 = 1)

Arguments

age: Numeric array of age intervals; for full life table = 0:100; for concise life table = c(0:1, seq(5,85,5))
sex: Character. Sex. "m" for males or "f" for females. By default = "m".
mx: Numeric array with age specific mortality rates.
ax: Optional. Numeric array with ax. By default, it is the middle of the interval, while ax for age 0 is modeled as in Andreev & Kingkade (2015).
w: Optional. Numeric array with weights for each age interval for calculating weighted life expectancy (wex).
l0: Numeric. Life table radix. By default, = 1 but it can be any positive real number. In "human" demography tradition it is 100'000, in "ecological" and "evolutionary" demography tradition it is 1.

Value

Matrix of (age x 9). Columns are: age, mx, ax, qx, lx, dx, Lx, Tx, ex

Details

By default, ax for age 0 is modeled as in Andreev & Kingkade (2015, p. 390, see table 3-2).

References

Andreev, E. M., & Kingkade, W. W. (2015). Average age at death in infancy and infant mortality level: Reconsidering the Coale-Demeny formulas at current levels of low mortality. Demographic Research, 33, 363-390.