Discussions

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  Different Cateorization for Different FInal States in analysis/categorization

  CMS CMS background (for bookkeeping)

  gsaha009 started Feb 27, 2026 in General

  

  

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  Issue while running cf.ReduceEvents in hh2bbww Columnflow setup

  Sac-1997 started Dec 30, 2025 in General · Closed

  

  

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  Is it possible to use the columnflow framework (already used for X->hh->WWbb decay chain) for X->hY->WWbb decay chain.

  Sac-1997 started Dec 4, 2025 in General

  

  

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  Posisble to run two ProduceColumns tasks sequentially?

  gsaha009 asked Sep 10, 2025 in Q&A · Unanswered

  

  

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  Reassigning process_id for DY samples is behaving differently with and without MC-Stitching

  gsaha009 started Aug 9, 2025 in General

  

  

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  Is it possible to save DataDriven hists as pickle in cf.mergeHistogram output area?

  gsaha009 started Jun 29, 2025 in General

  

  

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  Use XGBoost evaluator in Columnflow

  gsaha009 started Mar 3, 2025 in General · Closed

  

  

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  performance tip: merge ufuncs with ak.transform

  pfackeldey started Jan 17, 2025 in Ideas

  

  

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  Columnflow developments from Ghent University on scalefactors and uncertainties

  JulesVandenbroeck started Apr 2, 2025 in General

  

  

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  A few queries regarding MC stitching

  gsaha009 started Feb 8, 2025 in General

  

  

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  double initialisation for ArrayFunctions added to uses and produces

  maadcoen started Feb 24, 2025 in General

  

  

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  Duplicate events removal among several datasets

  gsaha009 started Jan 18, 2025 in General · Closed

  

  

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  Probable issue with object indices in SelectionResult replacing the raw_indices properly !!

  gsaha009 started Dec 4, 2024 in General · Closed

  

  

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  Difference between create_category_combinations and production.category_ids

  gsaha009 asked Oct 30, 2024 in Q&A · Closed · Unanswered

  

  

  

  

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  tmp directory in tasks

  JulesVandenbroeck asked Dec 3, 2024 in Q&A · Unanswered

  

  

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  Change in weight-producer to apply weight on DATA

  gsaha009 started Oct 24, 2024 in General · Closed

  

  

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  MC stitching with a few pt binned samples

  gsaha009 started Nov 6, 2024 in General · Closed

  

  

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  Problem with cf.PlotVariables in Columnflow latest : It is taking ages to process

  gsaha009 started Oct 28, 2024 in General · Closed

  

  

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  columnflow on lxplus

  JulesVandenbroeck asked Oct 22, 2024 in Q&A · Closed · Answered

  

  

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  Calling the functions of the config for once

  gsaha009 started Oct 22, 2024 in General · Closed

  

  

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  Channel specific calibration before categorization

  gsaha009 started Oct 10, 2024 in General · Closed

  

  

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  Eos and htcondor submission

  oponcet asked Aug 21, 2024 in Q&A · Closed · Unanswered

  

  

  

  

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  Apply integrated luminosity at the histogramming level after production?

  gsaha009 started Sep 2, 2024 in Ideas · Closed

  

  

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  Comparing results from CreateCutflowHistograms and MergeHistograms

  gsaha009 asked Aug 31, 2024 in Q&A · Closed · Unanswered

  

  

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  Array saved as objects in SelectionResult appeared as None in Production

  gsaha009 started May 9, 2024 in General · Closed

  

  

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