Undocumented argument na.last in factor() - R-devel

Tue, Mar 14, 2006 12:58 AM #

Hello!

I just noticed that argument na.last in factor() is not documented. Did
I miss something or ...? I just wonder how base package passes then R
CMD check. I checked also in source man page in R-devel.

Lep pozdrav / With regards,
    Gregor Gorjanc

----------------------------------------------------------------------
University of Ljubljana     PhD student
Biotechnical Faculty
Zootechnical Department     URI: http://www.bfro.uni-lj.si/MR/ggorjan
Groblje 3                   mail: gregor.gorjanc <at> bfro.uni-lj.si

SI-1230 Domzale             tel: +386 (0)1 72 17 861
Slovenia, Europe            fax: +386 (0)1 72 17 888

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"One must learn by doing the thing; for though you think you know it,
 you have no certainty until you try." Sophocles ~ 450 B.C.

Martin Maechler

Tue, Mar 14, 2006 2:57 AM #

Gregor> Hello!  I just noticed that argument na.last in
    Gregor> factor() is not documented. Did I miss something or
    Gregor> ...? I just wonder how base package passes then R
    Gregor> CMD check. I checked also in source man page in
    Gregor> R-devel.

I wondered too -- for a few moments only -- after reading your
message...

*BUT*  na.last  is *not* an argument to factor()!

Look more carefully  at   str(factor)  or args(factor)
(or the help page) !

Regards, 
Martin Maechler

Gregor Gorjanc

Tue, Mar 14, 2006 3:03 AM #

Martin Maechler wrote:

Argh, yes you are right. Argument na.last is for sort for levels. I
apologize for this.

Lep pozdrav / With regards,
    Gregor Gorjanc

----------------------------------------------------------------------
University of Ljubljana     PhD student
Biotechnical Faculty
Zootechnical Department     URI: http://www.bfro.uni-lj.si/MR/ggorjan
Groblje 3                   mail: gregor.gorjanc <at> bfro.uni-lj.si

SI-1230 Domzale             tel: +386 (0)1 72 17 861
Slovenia, Europe            fax: +386 (0)1 72 17 888

----------------------------------------------------------------------
"One must learn by doing the thing; for though you think you know it,
 you have no certainty until you try." Sophocles ~ 450 B.C.