From hpages at fhcrc.org  Wed May  7 21:37:22 2014
From: hpages at fhcrc.org (=?ISO-8859-1?Q?Herv=E9_Pag=E8s?=)
Date: Wed, 07 May 2014 12:37:22 -0700
Subject: [Rd] precedence (was 'historical NA question')
In-Reply-To: <536A5C52.4030907@r-project.org>
References: <3dfcdc$gnkvcv@ironport9.mayo.edu> <536A5C52.4030907@r-project.org>
Message-ID: <536A8B72.802@fhcrc.org>

No big deal. These things can be tricky:

  https://stat.ethz.ch/pipermail/r-devel/2006-January/036022.html

Sorry I couldn't resist ;-)

H.

On 05/07/2014 09:16 AM, John Chambers wrote:
> On 5/7/14, 5:21 AM, Therneau, Terry M., Ph.D. wrote:
>> Hadley asked about the Blue book; my shelf still has the earlier brown
>> book
>>     Becker and Chambers, 1984, S: An interactive environment for data
>> analysis and graphics.
>
> Historically interesting, but there was never a guarantee that Version 3
> of S (the "blue book") was back-compatible with earlier versions.  We
> gave users some help in "getting on the road" to converting, that was
> all (see Appendix 4 to the blue book).
>
> For that one brief moment, we felt free to innovate.
>
> John
>
>>
>> The manual page for precedence is
>>
>> $               component select
>> %x              special operator
>> -               unary minus
>> :               sequence operator
>> ^ **            exponentiation
>> * /             mult/div
>> + -             add/sub
>> < > <= >= == != logical
>> !               not
>> & |             and/or
>> <- ->           assignment
>>
>> Terry Therneau
>>
>> ______________________________________________
>> R-devel at r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-devel
>
> ______________________________________________
> R-devel at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-devel

-- 
Herv? Pag?s

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[Rd] precedence (was 'historical NA question')
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