groupID caseID spurtID beginLoc centerLoc amplitude duration
1 1 1 4.480804 5.434781 5.793429 2.099821 
1 1 2 8.751569 9.828274 14.124132 2.058305 
1 1 3 12.800402 13.753511 61.687676 2.199598 
1 2 1 2.702577 4.089185 13.628949 2.846945 
1 2 2 10.915508 11.902280 23.181466 1.961466 
1 3 1 4.400536 5.338916 4.896737 2.072165 
