From peter.langfelder at gmail.com  Thu Aug 21 01:59:24 2014
From: peter.langfelder at gmail.com (Peter Langfelder)
Date: Wed, 20 Aug 2014 16:59:24 -0700
Subject: [Rd] as.Date.character suggestion
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On Wed, Aug 20, 2014 at 4:52 PM, Gabriel Becker <gmbecker at ucdavis.edu> wrote:
> Could do both to preserve bc...
>
> if(missing(format) || !nchar(format))
>

No, the problem is that the function behaves differently when format
is missing than when it equals its default. Removing this difference
necessarily changes behaviour and hence (at least in principle) breaks
backward compatibility.

Peter



[Rd] as.Date.character suggestion
Peter Langfelder