[Rd] argument order for Math2 group functions in R 2.6.x (PR#10683)

[ripley at stats.ox.ac.uk]

signif() is primitive in 2.6.x, and so uses positional matching (almost 
all primitives do).

See the NEWS file for the announcement of the change.


On Sat, 2 Feb 2008, ben.hansen at umich.edu wrote:

> Full_Name: Ben Hansen
> Version: 2.6.1
> OS: Windows
> Submission from: (NULL) (66.93.3.101)
>
>
> Hi,
>
> In R 2.6.0 or 2.6.1 on Windows, I get the following upon opening the GUI (no
> previous commands or special settings):
>> signif(digits=4, x=1/3)
> [1] 4
>
> It seems to be taking 4 to be the "x" argument, the number to be rounded.
> However, my understanding (perhaps mistaken) was that it should respond as
> follows:
>> signif(digits=4, x=1/3)
> [1] 0.3333
>
> (This last is what I get from R 2.5.0 running on the same machine, and what I'm
> used to getting using earlier versions.)  Similar things happen with round().
>
> I haven't yet had the opportunity to investigate whether I'd see the same
> behavior on other platforms.
>
> Best wishes,
> Ben
>
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>

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
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