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Timeline for Pairwise Mahalanobis distances

Current License: CC BY-SA 3.0

30 events
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Mar 10, 2018 at 12:29 history edited ttnphns
edited tags
Mar 10, 2018 at 12:09 answer added ttnphns timeline score: 1
Apr 13, 2017 at 12:44 history edited CommunityBot
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Oct 2, 2015 at 13:43 history edited amoeba CC BY-SA 3.0
edited to streamline the question and remove the discussion with the previous question that is by now closed as a duplicate of this one (and the answer that used to be "top" has now score -2)
Oct 2, 2015 at 11:29 comment added ttnphns See also very similar question stats.stackexchange.com/q/33518/3277.
May 21, 2015 at 20:55 answer added Jalles10 timeline score: 1
S Jan 13, 2014 at 15:54 history bounty ended ahfoss
S Jan 13, 2014 at 15:54 history notice removed ahfoss
Jan 13, 2014 at 15:54 vote accept ahfoss
Jan 10, 2014 at 3:34 history edited ahfoss CC BY-SA 3.0
added 360 characters in body
Jan 10, 2014 at 3:28 comment added ahfoss @vqv Yes, sample covariance matrix. Original post is edited to reflect this.
Jan 10, 2014 at 3:16 history edited ahfoss CC BY-SA 3.0
added 108 characters in body
Jan 9, 2014 at 14:25 comment added user603 Thanks for posting this as a question. I think that your formula is not correct. See my answer below.
Jan 9, 2014 at 14:18 answer added user603 timeline score: 1
Jan 9, 2014 at 13:14 answer added Horst Grünbusch timeline score: 1
Jan 9, 2014 at 12:51 answer added Matteo Fasiolo timeline score: 27
Jan 9, 2014 at 5:59 answer added vqv timeline score: 6
Jan 9, 2014 at 5:07 comment added vqv Are you only using the sample covariance matrix? If so, then this is equivalent to 1) centering X; 2) computing the SVD of the centered X, say UDV'; 3) computing pairwise distances between the rows of U.
Jan 8, 2014 at 21:45 answer added whuber timeline score: 7
Jan 8, 2014 at 16:37 history tweeted twitter.com/#!/StackStats/status/420957355397099521
S Jan 8, 2014 at 16:31 history bounty started ahfoss
S Jan 8, 2014 at 16:31 history notice added ahfoss Draw attention
Jan 8, 2014 at 16:29 history edited ahfoss CC BY-SA 3.0
Added plot
Aug 2, 2013 at 4:45 answer added ahfoss timeline score: 3
Aug 2, 2013 at 4:38 history edited ahfoss CC BY-SA 3.0
added 22 characters in body
Jul 27, 2013 at 19:48 answer added ahfoss timeline score: 12
Jul 27, 2013 at 19:42 history edited ahfoss CC BY-SA 3.0
added 568 characters in body
Jul 27, 2013 at 4:57 comment added ttnphns Welcome. Can you print the two matrices of the distance in your question? And what is "inefficient" for you?
Jul 26, 2013 at 23:07 review First posts
Jul 26, 2013 at 23:19
Jul 26, 2013 at 22:51 history asked ahfoss CC BY-SA 3.0