BEAST Software
BEAST Basic Descriptive Statistics 
Below is the setup for Basic Statistics on a single file from the tutorial. All procedures start with a choice of events to include in the analysis or Foacl Acts. For each act, you can declare a minimum Intrabout gap. Any interval between 2 events of this type are ignored - the two instances of the event are lumped as if the interval did not exist.  Here, all intrabout gaps are set to zero (no lumping) and event 8.57 (fish visible and close to divider) as a subsession event. 
Counts and duration.- The output from Basic Statistics includes the sample size and total duration for each type of event and the average bout and interval lengths and standard deviations.