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Is there a metric that calculates "uniqueness of data"? For example if i have two sets of 200 observations,

DataSet 1 has 70 unique values but 4 values take up the next 130 observations. DataSet 2 has 60 unique values but no value is seen more than 4 times.

DataSet 2 would score higher for "uniqueness".

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closed as off-topic by Bob Jansen Apr 30 '18 at 19:29

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    $\begingroup$ I think this would be a more appropriate question for Cross Validated. $\endgroup$ – Daneel Olivaw Apr 30 '18 at 13:48
  • $\begingroup$ I'm voting to close this question as off-topic because I agree with @DaneelOlivaw and it's been posted and answered there. $\endgroup$ – Bob Jansen Apr 30 '18 at 19:29
  • $\begingroup$ go ahead. i reposted after his comment. $\endgroup$ – Dez Udezue Apr 30 '18 at 19:44