Do you do mark-recapture analyses? The required input data are "capture histories": binary strings to describe when animals (or plants) were found in a study.
For example, a capture history of "101" describes a study where an individual was:
* caught on the first event,
* not observed on the second event, and
* observed on the third event.
Data from mark-recapture and mark-resight studies are not usually recorded or stored in this format. Let's run through an exercise to reshape this data into capture histories!