[Rd] puzzled by cat() behaviour when argument '...' is a vector(and argument 'sep' contains "\n")

William Dunlap wdunlap at tibco.com
Thu Nov 6 02:05:26 CET 2008


> -----Original Message-----
> From: r-devel-bounces at r-project.org 
> [mailto:r-devel-bounces at r-project.org] On Behalf Of William Dunlap
> Sent: Wednesday, November 05, 2008 4:51 PM
> To: Duncan Murdoch; Peter Ruckdeschel
> Cc: r-devel at r-project.org
> Subject: Re: [Rd] puzzled by cat() behaviour when argument 
> '...' is a vector(and argument 'sep' contains "\n")
...
> Neither use any entry in sep after the end of the cat() 
> output, although, because of the previous rule, it may seem 
> that they do in the common case of sep="".

I meant 'common case of sep="\n"'.
 
> I had forgotten that sep= could be vectorized and use paste() 
> instead of
> cat() when I needed such functionality.  IMO, paste() has 
> fewer surprises.
> 
> Bill Dunlap
> TIBCO Spotfire Inc
> wdunlap tibco.com 



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