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
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