The data in the input file will be sorted as described below.
All values below the minimum value, Min, or above or equal to the maximum value, Max, will be considered as invalid.
The interval for a single class, Dclass, is defined by
(23.1)
The minimum value within each class, class(i), is found by
(23.2) 
The event is deemed valid for the given class if
(23.3) 
Note:
Each class is defined by a representative value, classrep(i), in the output:
(23.4) 
