[R] Assigning & function to variable
Prof Brian Ripley
ripley at stats.ox.ac.uk
Fri Feb 21 11:49:03 CET 2014
On 21/02/2014 10:07, Rainer M Krug wrote:
> 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
> 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% .
> R-help at r-project.org mailing list
> 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
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