R help - Feb 2014 - Assigning & function to variable

Hi

I want to assign the function & and | to a variable, because I want to
specify as a function argument if inside the function & or | should be
used.

  link <- &

does not work, and

  link <- "&" 

results in the string "&" being assigned to link.

So how can I assign the logical function to the variable link, so that I
can do

TRUE link FALSE

Thanks,

Rainer


-- 
Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation Biology,
UCT), Dipl. Phys. (Germany)

Centre of Excellence for Invasion Biology
Stellenbosch University
South Africa

Tel :       +33 - (0)9 53 10 27 44
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email:      Rainer at krugs.de

Skype:      RMkrug
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On 21/02/2014 10:07, Rainer M Krug wrote:
> Hi
>
> I want to assign the function & and | to a variable, because I want to
> specify as a function argument if inside the function & or | should be
> used.
>
>    link <- &
>
> does not work, and
>
>    link <- "&"
>
> results in the string "&" being assigned to link.
Use backticks: see ?Quotes.

link <- `&`

You can also make use of .Primitive.
> So how can I assign the logical function to the variable link, so that I
> can do
>
> TRUE link FALSE
Are you trying to ask how to make 'link' into a binary operator?  You 
cannot: user-defined binary operators are of the form %link% .

>
> Thanks,
>
> Rainer
>
>
>
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595