Two forms of constraint are implemented. The first is application of allowed ranges in value of user selected LIST's present in the original EVENT dataset. Up to 10 LISTS can simultaneously have ranges applied. The second form of constraint (selected using the INDEX keyword) is simply to select events on their ordinal position within the event list.
In either form of constraint multiple ranges may be specified. Multiple ranges must be placed in increasing numerical order e.g. the start value of range 2 must be greater than the end value of range 1.
The user may specify whether the range(s) specified for each LIST are to be kept, or to be thrown away. By default the ranges entered are to be kept. Up to 500 ranges may be specified for each selected LIST.
The following rules apply to the ranges from which data will be copied to the output: the start value is inclusive; and the end value exclusive.
Data falling within a specified range of each of the selected lists are written to the output event dataset.
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