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Forum: Analysis
Re: None Undesired branch (Volodymyr Rodin)
Date: Apr 05, 03:27
From: Ivana Hrivnacova <Ivana Hrivnacova>

Dear Volodymyr,

In Geant4 10.5 the default ntuple merging mode was changed from columnWise to rowWise, as merging in columnWise mode may result in ntuples with non-preserved rows (events). Please, find more details in Geant4 Application Developers Guide:

http://geant4-userdoc.web.cern.ch/geant4-userdoc/UsersGuides/ForApplicationDeveloper/html/Analysis/managers.html#parallel-processing

In case, your analysis is not sensitive to events preservation, you can switch to the columnWise merging mode, otherwise it is better to stay with the default.

We plan to improve the rowWise merging mode and get rid off the special branch in the next Geant4 release. To improve your text output with the current Geant4 version, we may add a possibility to customise the special branch name by the user, so that you can set a short name, which would not hide the leaves names in the output. This modification can go to the next patch to Geant4 10.5.

Best regards,

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1 None: Re: Undesired branch   (Volodymyr Rodin - Apr 05, 03:43)
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