A filter process an input event stream producing an output event file that contains a subset of parameters from a subset of the events in the input stream.
Filters consist of three components:
Filters are created and manipulated with the filter command.
Filters are created in the "disabled" state. When a filter is enabled, it opens its output file and starts writing filtered data. Separating the enable/disable from attaching data files allows you to produce an output file that is filtered data from several event files. To close the file associated with a filter, disable it.
At any time, you may modify any of the components of a filter (gate, parameterlist and filename).
See the filter section of the programming guide for a description of how to read back filtered data files.
Last Modified: October 28, 2003 by: firstname.lastname@example.org
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