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A number of bins are set up for each trace in the "Trace # list", evenly dividing the range of voltage levels measured from the waveform selected by the "Amplitude W.F. #". Each frame in the range to be analysed is added in to the appropriate bin, based on the waveform level associated with the frame. The parameters "W.F. amplitude delay" and "W.F. amplitude window" indicate a range of points, relative to the point where the frame was triggered, used to obtain a level reading on the waveform.
The range of voltage levels can be restricted to a smaller range, by setting the parameters "Min W.F. amplitude" and "Max W.F. amplitude". Only frames whose associated waveform level readings stay within these bounds will be included in the average. Normally, these two parameters only restrict the range, and do not enlarge it: if the parameters are beyond the range of voltage levels in the waveform, it is the measured range which is divided into bins, not the range defined by the parameters. However, if the "Fixed W.F. level bins" option is enabled, then the two parameters above will always define the range which is divided into bins, even if it exceeds the range of levels in the waveform.
Deleted frames, and frames whose tag values are not in the "Tag list" are excluded. You can also exclude frames that occur during the inactive phase of cycles on the waveform selected by the "Cycle W.F. #", by enabling the "Active cycle phase only" option. This restricts the average to frames that occur between the start and stop times of activity in any cycle. If the "Base cycles on stop time" option is also enabled, then the opposite is true; frames occurring in the inactive phases are included, and frames in the active phases are left out.