Are you using euclidean distances?
On Sun, Aug 30, 2009 at 7:33 AM, Grzes<gregori...@gmail.com> wrote:
>
> Hi,
> For example:
> I built a half matrix "w" using a daisy(x, metric = c("euclidean"))
>
> http://www.nabble.com/file/p25211016/1.jpg
>
> And next I transformed this matrix "w" using isoMDS function, for example
> isoMDS(w, k=2) and as result I got:
> http://www.nabble.com/file/p25211016/2.jpg
> And now I have two questions:
>
> 1. If number in matrix w[2, 1] (= 0.41538462) match two points (below) in
> matrix created by isoMDS [1,1:2] and [2,1:2] ?
> http://www.nabble.com/file/p25211016/3.jpg
>
> Is this the same point?
>
> 2. If it's true why I can't check my euclidean distance by using this
> equation:
> d<-
> ((0.511396296-(-0.129372871))^2+((-0.0171714934)-(-0.2759703494))^2)^(1/2)
>
> I thought that "d" should be 0.41538462 but unfortunately I get d=0.6910586.
> Why?
> --
> View this message in context:
> http://www.nabble.com/about-isoMDS-method-tp25211016p25211016.html
> Sent from the R help mailing list archive at Nabble.com.
>
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--
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so little or so large that all they really do for us is puff us up and
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