May 2, 2013
Maybe I overdid it with the title, but I think the data speak for themselves in the (?much) anticipated, pre-announced comparison between a naive, algebra based solution and the Bayesian, Monte Carlo based one.
To carry out this comparison, I assumed: Read the rest of this entry »
October 13, 2012
In a previous post I mentioned that Poisson models can be used to carry out survival analysis tasks e.g. estimation of survival curves or even relative risk modelling. Yet, I never showed how this can be done. So I will close the gap today and highlight how this works from a purely mathematical vantage point.
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October 5, 2012
The connection between survival analysis via hazard based modelling and generalized linear models had been made very early even since the description of the proportional hazard (PHM) Cox (1972) and generalized linear models (GLM) Nelder and Wedderburn (1972). For example,
– Breslow (1974) considers the proportional hazard model as a discrete time logistic regression in which discrete probability masses are put on the (ordered) set of observed failure times Read the rest of this entry »