Davies Boulding index returning negative values

vikram_neo_rapivikram_neo_rapi Member Posts: 1 Contributor I
edited November 2018 in Help
Hi All,
          I am trying to gauge the performance of the k means algo using different k values (using the DB index values). Strangely all DB idx values being returned are negative. I guess this must be due to the average dist from centroid in different clusters being negative. But what i dont understand is that distances being scalar values , how any distance could be negative ...or am i missing something here ? Please let me know.



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    taha_mokfitaha_mokfi Member Posts: 2 Contributor I
    i have the same problem....is there any idea or solution?....or it is just a big BUG
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