[R] npmc function: 'x' must be atomic
Prof Brian Ripley
ripley at stats.ox.ac.uk
Tue Jun 22 16:38:38 CEST 2004
On Tue, 22 Jun 2004, Patrick Drechsler wrote:
> I'm having trouble getting the function `npmc' working. I have a
> 2 column 30 row table called `mydata':
> > npmc(mydata, df=2, alpha=0.05)
> Error in sort(unique.default(x), na.last = TRUE) :
> `x' must be atomic
> > is.atomic(mydata)
>  TRUE
> Is there anything I have overlooked?
traceback()/dump.frames/debugger() to pinpoint the error?
Telling us where you got npmc from? (I suspect you mean the one in package
Noticing that `x' is not the same name as `mydata'?
> Am I invoking the function correctly? I wasn't able to find any hints in
> the archives either.
I am sure that the hint to make use of R's debugging facilities is there
hundreds of times.
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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