Thanks for replying, Francois. 

To directly answer your question, the difference between using base R 
functions and a library comes down to code correctness and stability, as 
well as future support.  Portions of the language, whether in base or in 
packages, which have been around a long time, or with many people working 
on them, have had more time to be tested.

Your question is, in some ways, my own.  Stated in the reverse, why should 
I use a package that allows me write *differently*, but not necessarily 
*clearer*?  I'm posing my question to the larger and more experienced 
audience in the hopes that someone will enlighten me. 

It's entirely possible that program clarity is dependent upon the native 
spoken language -- the use of the %but% operator may allow R phrases that 
feel much more natural to others than it does to my native English noggin. 
 There may be other reasons why this package is totally indispensable.  I 
don't know, but I bet others here do.

cur

Romain Francois <romain.francois@dbmail.com> wrote on 07/02/2009 02:39:25 
PM:
> How is this different to dependency on regular functions ?
> 
> On 07/02/2009 10:29 PM, Seeliger.Curt@epamail.epa.gov wrote:
> > Folks,
> >
> > In brief -- how many of you have found the 'operators' package to be
> > valuable in their work?
> >
-- 
Curt Seeliger, Data Ranger
Raytheon Information Services - Contractor to ORD
seeliger.curt@epa.gov
541/754-4638


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