me cases a TrkFile can be generated where pTrk doesn't cover the whole movie, only a subset, in which case pTrkFrm tells you which frames are covered. The usual case though is that .pTrk covers the entire movie and then .pTrkFrm will be 1:totalNumFrames. Lists all frames in pTrk file including those without tracking data. </p>
 
<p>pTrkFull (numpoints x numdimensions x numreps x numframes)
numreps: the number of CPR 'replicates' or number of 'test shapes' that are propagated using the trained regressor c