Experiments in modelling recent Danish fertility curves |
| |
Authors: | Jan M. Hoem Dan Madien Jørgen Løgreen Nielsen Else-Marie Ohlsen Hans Oluf Hansen Bo Rennermalm |
| |
Affiliation: | 1. Laboratory of Actuarial Mathematics, University of Copenhagen, Universitetsparken 5, DK-2100, Copenhagen, Denmark 2. Section for Demography, Department of Statistics, University of Copenhagen, Copenhagen, Denmark 3. National Central Bureau of Statistics, Stockholm, Sweden
|
| |
Abstract: | This paper reports the outcome of an exercise in curve fitting to annual sets of Danish age-specific fertility rates for the years 1962 to 1971 by means of least squares. Functions fitted were a cubic spline, the Hadwiger and Coale-Trussell functions, the gamma and beta densities, two versions of a polynomial, and two of Brass's relational procedures, as well as the Gompertz curve. The spline function fitted all curves far better than any of the others. The Coale-Trussell procedure and gamma density were about equal, followed by the Hadwiger function. All of these functions fit the data well. One of the polynomials fit reasonably well, but the rest of the functions were less accurate. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|