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Use your favorite editor to add or modify code the analysis module. For C++ modules see Psana psana - User Manual for examples.

6. Build (Freq: after every edit)

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The file will contain both the names of the modules you want to load and parameters you want to pass to those modules, exact content of the configuration file is explained in Psana psana - User Manual.

8. Run the analysis (Freq: as much as you need)

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