Create a Cairns-Blake-Dowd mortality model
Utility function to initialise a StMoMo object representing a
Cairns-Blake-Dowd mortality model.
cbd(link = c("logit", "log"))link |
defines the link function and random component associated with
the mortality model. |
The created model is either a logit-Binomial or a log-Poisson version of the Cairns-Blake-Dowd mortality model which has predictor structure
η_{xt} = κ_t^{(1)} + (x-\bar{x})κ_t^{(2)},
where \bar{x} is the average age in the data.
An object of class "StMoMo".
Cairns, A. J. G., Blake, D., & Dowd, K. (2006). A Two-Factor Model for Stochastic Mortality with Parameter Uncertainty: Theory and Calibration. Journal of Risk and Insurance, 73(4), 687-718.
StMoMo, central2initial,
m6, m7, m8
CBD <- cbd() CBDfit <- fit(CBD, data = central2initial(EWMaleData), ages.fit = 55:89) plot(CBDfit, parametricbx = FALSE)
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