Add an EventTable
type that supports the Tables interface
#46
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Both Kaplan-Meier and Nelson-Aalen compute the same set of basic counts at each unique time prior to computing their respective quantities of interest. The counts have a notably table-like format, so much so that they can implement the Tables.jl interface with minimal effort.
As a follow-up, I'll refactor
KaplanMeier
andNelsonAalen
to useEventTable
under the hood and clean out all the stuff that's now redundant with theEventTable
machinery.Credit for the idea of integration with Tables.jl goes entirely to Tyler Beason, author of #25, who has been added as a co-author of this commit.