Which package is the sammon() you are using in? (There such functions in
TWO packages.)
On Mon, 14 Jun 2004, Greg Blevins wrote:
> Hello,
>
> I am inputing a 17 x 17 symetric matrix to sammon. The matrix is a
> co-occurance matrix with no missing data. If this is at all relevant,
> running hclust on this matrix works.
>
> > samx <- sammon(q23axproduct)
>
> I receive the following error:
>
> Error in sammon(q23axproduct) : initial configuration must be complete
>
> In addition: Warning messages:
>
> 1: some of the first 2 eigenvalues are < 0 in: cmdscale(d, k)
>
> 2: NaNs produced in: sqrt(ev)
>
> >
>
> Any suggestions of what is happening and how to rectify this?
>
> Thanks
>
> Gregory L. Blevins
>
> The Market Solutions Group
>
> [[alternative HTML version deleted]]
>
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--
Brian D. Ripley, ripley at stats.ox.ac.uk
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
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