convertFx function

Convert Life Table Indicators

Easy conversion between the life table indicators. This function is based on the LifeTable function and methods behind it.

convertFx(x, data, from, to, ...)

Arguments

• x: Vector of ages at the beginning of the age interval.

• data: Vector or data.frame/matrix containing the mortality indicators.

• from: Specify the life table indicator in the input data. Character. Options: mx, qx, dx, lx.

• to: What indicator would you like to obtain? Character. Options: mx, qx, dx, lx, Lx, Tx, ex.

• ...: Further arguments to be passed to the LifeTable

  function with impact on the results to be produced.

Returns

A matrix or array containing life table indicators.

Examples

# Data ---
x  <- 0:110
mx <- ahmd$mx

# mx to qx
qx <- convertFx(x, data = mx, from = "mx", to = "qx")
# mx to dx
dx <- convertFx(x, data = mx, from = "mx", to = "dx")
# mx to lx
lx <- convertFx(x, data = mx, from = "mx", to = "lx")

# There are 28 possible combinations --------------------------------
# Let generate all of them.
from <- c("mx", "qx", "dx", "lx")
to   <- c("mx", "qx", "dx", "lx", "Lx", "Tx", "ex")
K    <- expand.grid(from = from, to = to) # all possible cases/combinations

for (i in 1:nrow(K)) {
  In  <- as.character(K[i, "from"])
  Out <- as.character(K[i, "to"])
  N <- paste0(Out, "_from_", In)
  cat(i, " Create", N, "\n")
  # Create the 28 sets of results
  assign(N, convertFx(x = x, data = get(In), from = In, to = Out))
}

See Also

LifeTable

Author(s)

Marius D. Pascariu