| getqxt {Q2q} | R Documentation |
getqxt: obtain the age specific mortality surface
Description
getqxt interpolate the age specific mortality rates for a set of life tables
Usage
getqxt(Qxt, nag, t)
Arguments
Qxt |
A surface of Five-ages mortality rates which should be a numerical matrix containing mortality rates without age identification column and time identification row |
nag |
the number of age groups |
t |
the number of years |
Value
qxt a matrix containing the age-specific mortality rates for age x in rows and for year t in columns
lxt a matrix containing the age evolution of survivorship for the year t
dxt a matrix containing the theoretical deaths occured at age x and year t
qxtl the age specific mortality rates interpolated using the Lagrange method for each year t
qxtk the age specific mortality rates interpolated using the Karup-king method for each year t
jonct_ages a vector containing, for each year t, the ages where qxtk and qxtl have been joined
Author(s)
Farid FLICI
Examples
getqxt(matrix(rep(c(0.12, seq(0.05, 0.5,by=0.05)), 5), byrow=FALSE, ncol=5), 11, 5)