An old (Lisp ? C ?) quote, whose author escapes me now, was :
"syntactic sugar causes cancer of the semicolon"
.. but nowadays semicolons are rarely used in "real-life" R.
Emmanuel Charpentier
PS and, BTW, neither C nor Lisp have much use for semicolons... Was that
Pascal (or one of its spawns) ?
Le jeudi 18 mars 2010 à 12:00 +0000, Prof Brian Ripley a écrit :
> -> is usually only used when you suddenly remember you wanted to keep
> result of a computation, especially in the days before command-line
> editors were universal.
>
> fn(a,b) ... oh I'd better keep that ... -> z
>
> On Thu, 18 Mar 2010, Dan Kelley wrote:
>
> > I have never used -> but I noticed at
> >
> > http://github.com/jiho/r-utils/blob/master/beamer_colors.R
> >
> > that some people do.
>
> > In fact, the above-named code has a sort of elegance about it
> (except
> for the use of "=" for assignment...). To my eye, -> calls to mind a type
> of assignment that is meant to stand out. For example, perhaps it would make
> sense to use -> to assign to things that are not expected to vary through
> the rest of the code block.
> >
> > Q1: is there a convention, informal or otherwise, on when to use the ->
> > operator?
> >
> > Q2: if there is no convention, but if people think a convention might help,
> > what would that convention be?
> >
> > Dan Kelley, PhD
> > Professor and Graduate Coordinator
> > Dept. Oceanography, Dalhousie University, Halifax NS B3H 4J1
> > kelley....@gmail.com (1-minute path on US server) or dan.kel...@dal.ca
> > (2-hour path on Cdn server)
> > Phone 902 494 1694; Fax 902 494 3877
> >
> >
> >
> >
> >
> >
> >
> >
> > [[alternative HTML version deleted]]
> >
> > ______________________________________________
> > R-help@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.
> >
>
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