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view scripts/examples.sql @ 854:33d296984dd8
rework and more info on speed probabilities for classification
author | Nicolas Saunier <nicolas.saunier@polymtl.ca> |
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date | Thu, 22 Sep 2016 17:50:35 -0400 |
parents | d44eba0db517 |
children |
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# get object id, first and last frame numbers, length and number of features select OF.object_id, min(P.frame_number) as frame1, max(P.frame_number) as frame2, max(P.frame_number)-min(P.frame_number) as length, count(OF.trajectory_id) as nfeatures from positions P, objects_features OF where P.trajectory_id = OF.trajectory_id group by OF.object_id order by nfeatures asc;