>>>>> "PS" == Petr Savicky <savi...@cs.cas.cz>
>>>>> on Tue, 12 May 2009 13:17:15 +0200 writes:
PS> On Mon, May 11, 2009 at 05:06:38PM +0200, Martin Maechler wrote:
>> The version I have committed a few hours ago is indeed a much
>> re-simplified version, using as.character(.) explicitly
PS> The current development version (2009-05-11 r48528) contains
PS> in ?factor a description of levels parametr
PS> levels: an optional vector of the values that 'x' might have taken.
PS> The default is the unique set of values taken by
PS> 'character(x)', sorted into increasing order _of 'x'_. Note
PS> that this set can be smaller than 'sort(unique(x))'.
PS> I think that 'character(x)' should be 'as.character(x)'.
Definitely; thank you.
Thanks as well to suggestions from yesterday, of which I have at
least added the "approximately".
Martin
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