why is Average distance in CenBasedEvaluator negative?

Question

hi
I used CentroidBasedEvaluator to validaty but  Average distance and Davies Bouldin was  negative? they must posity
Thanks

earmijo · Answer

Do you think distances can be negative?

taha_mokfi · Answer

earmijo  wrote:
No clue. I have always ignored the sign. After all, distances are always positive.

is there any better solution? i think ignoring the sign is not a god idea....

earmijo · Answer

No clue. I have always ignored the sign. After all, distances are always positive.