demography (version 1.22)

tfr: Compute total fertility rate from fertility rates

Description

Compute total fertility rates from age-specific fertility rates contained in a demogdata object.

Usage

tfr(data, PI = FALSE, nsim = 500, ...)

Value

If data are of class demogdata, the function returns a time series of fertility rates. If data are from forecast.fdm, the function returns an object of class forecast containing point forecasts and (optionally) prediction intervals.

Arguments

data

Demogdata object of type "fertility" such as obtained from read.demogdata, forecast.fdm.

PI

If TRUE, produce a prediction interval.

nsim

Number of simulations to use when computing a prediction interval.

...

Other arguments passed to simulate when producing prediction intervals.

Author

Rob J Hyndman

See Also

fdm

Examples

plot(tfr(aus.fert))
ausfert.fcast <- forecast(fdm(aus.fert))
plot(tfr(ausfert.fcast,PI=TRUE,nsim=400))