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1. If the first and/or last event numbers are defined, then the filter will select events in this range only.
2. If the evtstring is defined, only listed events of event ranges will be selected. For example, the evtstring parameter can be defined as

   Code Block
   2,5,11-15,20-25,29,30

   that means the list of events:

   Code Block
   2 5 11 12 13 14 15 20 21 22 23 24 25 29 30

   In the evtstring parameter the comma "," and sign minus "-" as a dash are the only allowed separators. Blank spaces are also allowed. Other characters may abort the program. The evtstring mode has higher priority than the 1st mode.
   The filterIsOn allows easy turn on/off this filter in *.cfg file.

Auxiliary scripts

A few auxiliary scripts for example are located in the directory ImgAlgos/data:

• psana.cfg - set non-default parameters to run psana for ImgAlgos::ImgPeakFinder and ImgAlgos::ImgPeakFilter
  The psana running this script saves images and peaks for event 115 in text files.
• PlotCameraImageFromFile.py - Plots image and spectrum for image saved in file.
• PlotCameraImageAndPeaks.py - Plots image with found peaks and spectrum.