[Databionic-ESOM-User] what if...

[davide c. <daw...@gm...>]

Hi againI'm trying to get something out of my ~4000 datapoints in 123
attributes. Some clustering techniques (i.e. EM clustering) and other data
analysis tools (i.e. PCA) tell me I can divide my dataset in 3 or 4 big
"groups".
I'm trying now ESOM tools and it looks like I have a mountain and two
orthogonal valleys (on a toroid map). On the mountain I have one group (are
those all outliers?) in the valleys I have all remaining data. It happens
that data that were in the same group in other analysis are still next to
each other but, since they are in the same valley (actually a plain under
mountains...), I should say that they cannot be clustered with ESOM
tools...
Do you have any hint to get out this?

Thanks

d