columnflow
Project description
Backend for vectorized, columnar HEP analyses with pure Python, law and order.
Quickstart
Modules, exported shell functions and environment variables might have a prefix CF or cf to express their connection to this project.
A couple test tasks are listed below. They might require a valid voms proxy for accessing input data.
# clone the project
git clone --recursive git@github.com:uhh-cms/columnflow.git
cd columnflow
# source the setup and store decisions in .setups/dev.sh (arbitrary name)
source setup.sh dev
# index existing tasks once to enable auto-completion for "law run"
law index --verbose
# run your first task
law run cf.ReduceEvents \
--version v1 \
--dataset st_tchannel_t \
--branch 0
# create a plot
law run cf.PlotVariables \
--version v1 \
--datasets st_tchannel_t \
--producers example \
--variables jet1_pt \
--categories 1e \
--branch 0
# create a (test) datacard (CMS-style)
law run cf.CreateDatacards \
--version v1 \
--producers example \
--inference-model example \
--workers 3
Projects using columnflow
analysis playground: A testing playground for HEP analyses.
hh2bbtautau: HH → bb𝜏𝜏 analysis with CMS.
hh2bbww: HH → bbWW analysis with CMS.
topmass: Top quark mass measurement with CMS.
mttbar: Search for heavy resonances in ttbar events with CMS.
Development
Source hosted at GitHub
Report issues, questions, feature requests on GitHub Issues
Project details
Release history Release notifications | RSS feed
Download files
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.