Catalogue statistical information
When hitting the "Apply" button the following data on the edited catalogue are computed from the list of intervals :
- The minimum and maximum durations with corresponding intervals (following the '--' signs)
- The mean, the standard deviation (St. dev) and the median of interval durations
- The density of the catalogue in the global time span : this is the ratio of the sum of all interval durations over the global time span, i.e. the duration of the interval starting with the min 'Start' and finishing with the max 'Stop'.
The density is an indication of the occurrence frequency of the event described in a catalogue.