Mercurial > hg > nsaunier > traffic-intelligence
view scripts/examples.sql @ 495:82c06ad62254
added parameter description with ranges
A parameter was added (block size) that used to be the same as window size
| author | Nicolas Saunier <nicolas.saunier@polymtl.ca> |
|---|---|
| date | Thu, 01 May 2014 11:08:26 -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;