Age decomposition of mortality: single decrement process

Usage

decomp(mx1, mx2, sex = "m", age, method = "andreev", ax1 = NULL, ax2 = NULL)

mx1: Numeric array with age specific mortality rates of population 1 (base population).
mx2: Numeric array with age specific mortality rates of population 2 (compared population).
sex: Character. Sex. "m" for males and "f" for females. By default, sex = "m".
age: Numeric array of age intervals; for full life table = 0:100; for concise life table = c(0:1, seq(5,85,5))
method: Character. Decomposition method. "andreev" (1982), "arriaga" (1984) or "pollard" (1982) - slightly different in their results. By default, method = "andreev".
ax1: Optional. Numeric array with ax for the 1st population. By default, it is a the middle of the interval, while ax for age 0 is modeled as in Andreev & Kingkade (2015).
ax2: Optional. Numeric array with ax for the 2nd population. By default, it is a the middle of the interval, while ax for age 0 is modeled as in Andreev & Kingkade (2015).

dataframe with parameters of decomposition (depends on method) and decomposition in years (ex12) and percents (ex12_prc).

Arriaga, E. E. (1984). Measuring and explaining the change in life expectancies. Demography, 21, 83-96.
Андреев Е.М. (1982). Метод компонент в анализе продолжительности жизни. Вестник статистики, 9, 42-47.
Pollard, J. H. (1982). The expectation of life and its relationship to mortality. Journal of the Institute of Actuaries, 109(2), 225–240.