[R] Is it possible to define another kind of NA

Rich Shepard rshepard at appl-ecosys.com
Thu Nov 13 16:46:16 CET 2014

On Thu, 13 Nov 2014, Keith Jewell wrote:

> You are re-inventing the wheel and yours will probably end up square!
> R already has facilities for handling censored data, e.g. Surv in the 
> survival package (which despite its name is applicable to applications other 
> than survival analysis).

   There is also the NADA package that provides several approaches for
handling left-censored data.


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