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====== Simple Selections ======
There are many different ways to achieve the same within the LHCb computing environment.
This page collects examples on how one can write a selection.

===== Using CombineParticles =====
This is probably the fastest way to achieve a Selection and allows to easily use the available tools. No packages need to be locally installed for this. The **Introduction** [[https://twiki.cern.ch/twiki/bin/view/LHCb/DaVinciTutorial#Exercises | Tutorials for DaVinci]] explain how to do this. The python configuration is explained in [[https://twiki.cern.ch/twiki/bin/view/LHCb/DaVinciTutorial4 | Tutorial4 ]]

A basic step-by-step example is available under [[start:DaVinciExample | DaVinic Example]]

===== Using a C++ Algorithm =====
A more complex possibility is to write a C++ algorithm the //Advanced// [[https://twiki.cern.ch/twiki/bin/view/LHCb/DaVinciTutorial#Exercises | Tutorials for DaVinci]] cover this.

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