added .compressed() to np.ma flattening
added .compressed() to np.ma flattening

fivejjs/pyhsmm,theDataGeek/pyhsmm,theDataGeek/pyhsmm,wgmueller1/pyhsmm,mattjj/pyhsmm,fivejjs/pyhsmm,bikash/pyhsmm,theDataGeek/pyhsmm,wgmueller1/pyhsmm,fivejjs/pyhsmm,theDataGeek/pyhsmm,mattjj/pyhsmm,theDataGeek/pyhsmm,bikash/pyhsmm,fivejjs/pyhsmm,wgmueller1/pyhsmm,fivejjs/pyhsmm,bikash/pyhsmm,wgmueller1/pyhsmm,wgmueller1/pyhsmm