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Nonparametric graduation techniques as a common framework for the description of demographic patterns
Figure 7. Observed and estimated period age-specific fertility rates for Figure 8. Observed and estimated cohort age-specific fertility rates
Denmark, 2000. for Spain, 1943.
Figure 9. Observed and estimated cohort age-specific fertility rates Figure 10. Observed and estimated age-specific fertility rates of
for Spain, 1963. Ireland, 2000. First births.
5.3 Numerical Results for Nuptiality
In order to evaluate the adequacy of SVM for nuptiality graduation purposes, we applied SVM to a
variety of empirical data sets. For comparison reasons, we also fit the same data sets to the SC-M, C-M,
and GLG models. In cases where these simple models fail to adequately estimate the nuptiality pattern
in data sets expressing heterogeneity, we fitted the MC and the P-K mixture models.
Once again, for kernel techniques, in the case of mortality and fertility data, the subroutine
“lokerns” of the library “lokern” for the R-package was used for the calculation of Gasser-Müller
12 International Journal of Population Studies | 2016, Volume 2, Issue 1
