demography (version 1.18)

update.fmforecast: Updating functional demographic models and coherent functional demographic models.

Description

update.fmforecast() updates fdm forecasts. The argument object is the output from forecast.fdm which has been subsequently modified with new coefficient forecasts. These new forecasts are used when re-calculating the forecast of the mortality or fertility rates, or net migration numbers.

update.fmforecast2() updates fdmpr forecasts. The argument object is the output from forecast.fdmpr which has been subsequently modified with new coefficient forecasts.

Usage

"update"(object, ...)
"update"(object, ...)

Arguments

object

Output from either fdm or coherentfdm.

...

Extra arguments currently ignored.

Value

object.

See Also

forecast.fdm, forecast.fdmpr

Examples

## Not run: 
# france.fit <- fdm(fr.mort,order=2)
# france.fcast <- forecast(france.fit,50)
# # Replace first coefficient model with ARIMA(0,1,2)+drift
# france.fcast$coeff[[2]] <- forecast(Arima(france.fit$coeff[,2], 
#   order=c(0,1,2), include.drift=TRUE), h=50, level=80)
# france.fcast <- update(france.fcast)
# 
# fr.short <- extract.years(fr.sm,1950:2006)
# fr.fit <- coherentfdm(fr.short)
# fr.fcast <- forecast(fr.fit)
# par(mfrow=c(1,2))
# plot(fr.fcast$male)
# # Replace first coefficient model in product component with a damped ETS model:
# fr.fcast$product$coeff[[2]] <- forecast(ets(fr.fit$product$coeff[,2], damped=TRUE), 
#   h=50, level=80)
# fr.fcast <- update(fr.fcast)
# plot(fr.fcast$male)
# ## End(Not run)