k-means

ardavani

hello
I have 3 questions respect to clustering:
1. I want to see the plot of clustering and i want to see the image of clusters. i can't see this in plot view after clustering
2. after i do clustering with k-means, i see this: "Avg. within centroid distance: -2.022"  why this is negative?
3. k=15 then Avg. within centroid distance:-2.657 and Davies Bouldin: -1.086 or when  k=20 then Avg. within centroid distance: -2.346 and Davies Bouldin: -1.273 and so on. isn't problem and what is the meaning?
I really appreciate your help!

MariusHelf

Hi,

regarding your first question I suppose you want to see the clustered data, right? In that case you have to connect the second clu port of k-Means to the process output.

The distance has a negative sign due to internal reasons. It should be fixed in one of the next versions. Until then you can safely ignore the sign - the absolute value is correct in any case.

I don't understand your 3rd question - can you explain your problem a bit more detailed?

Best regards,
Marius