[R] apply and factor

[Laurent Gautier]

Jim Lemon wrote:
> 
> Prof Brian Ripley wrote:
> >
> > There is a function conflicts() to do the checking.
> > Deliberate overrides are fairly common, for example when debugging,
> > and it is probably better to get into the habit of using conflicts()
> > if you get strange results.
> >
> Martin Maechler kindly informed me of conflicts() after I had posted a
> suggestion for dup.name(). However, conflicts() only tells you _after_
> you have clobbered something, while dup.name() allows you to check
> beforehand. I do agree that it is a time-consuming operation, as
> dup.name() takes about 5 seconds to run. It's mostly useful to avoid
> trashing a laboriously constructed data set in the working directory.
>


What about using exists()  ?
Then digging if something exists....



Regards,






Laurent






-- 
Laurent Gautier			CBS, Building 208, DTU
PhD. Student			D-2800 Lyngby,Denmark	
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