rainbow (version 1.2)

Australiafertility: Australian fertility data

Description

Age-specific fertility rates in Australia from 1921 to 2006.

Usage

data(Australiafertility)
data(Australiasmoothfertility)

format

An object of class fd and fts.

source

The Australian Demographic Data Bank (courtesy of Len Smith).

Details

Australian fertility rates and populations (1921-2006) for age groups (15-49) were obtained from the Australian Bureau of Statistics (Cat.No.3105.0.65.001, Table 38). These are defined as the number of live births during the calendar year, according to the age of the mother, per 1000 of the female resident population of the same age at 30 June. Australiasmoothfertility is the smoothed version of Australiafertility data. The smoothing technique is the penalized regression spline with concave constraint, described in Hyndman and Ullah (2007).

References

R. J. Hyndman and M. S. Ullah (2007) "Robust forecasting of mortality and fertility rates: A functional data approach", Computational Statistics and Data Analysis, 51(10), 4942-4956. R. J. Hyndman and H. Booth (2008) "Stochastic population forecasts using functional data models for mortality, fertility and migration", International Journal of Forecasting, 24(3), 323-342.

Examples

plot(Australiafertility)
plot(Australiasmoothfertility)