[R] problems with lda , data included, can somebody test with the new version

Prof Brian Ripley ripley at stats.ox.ac.uk
Wed Aug 6 13:01:28 CEST 2003

On Wed, 6 Aug 2003, Nicolaas Busscher wrote:

> enclosed a simple R script (and a data file, and the output) , with
> calls lda similar to the example with the iris data in the
> documentation. it is not working and i dont understand the error
> message. can anybody help me? i am using R 1.5.1 (2002.06.17) on
> debian woody stable. 
> I would like to avoid updating now, because i want to keep the system
> in "stable". can somebody test, if the newer version didnt have this
> problem ? thanks

Notice the error is from scale(), and that has not been changed for 18
months.  Your session appears to have a corrupt version of scale, and
perhaps you ought to use a clean session and R --vanilla to help you find
your problem.

> > z<-lda(assignment ~ .,actaData,prior=prio,tol=1.0e-08)
> Error in scale(group.means, center = xbar, scale = FALSE) : 
> 	unused argument(s) (center ...)
> Execution halted

BTW, your code does work in current R.

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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