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Fermi ROOT class

Fermi ROOT class. Started in 1999 Evolved into a 3-Day Class Given 18 times – 400 people ROOT The Movie. Why teach ROOT?. Speed up learning (20 hours vs. 80 hours) Propagate good practices and intended use with examples. Hear the issues specific to the experiment and ROOT

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Fermi ROOT class

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  1. Suzanne Panacek

  2. Fermi ROOT class • Started in 1999 • Evolved into a 3-Day Class • Given 18 times – 400 people • ROOT The Movie Suzanne Panacek

  3. Why teach ROOT? • Speed up learning (20 hours vs. 80 hours) • Propagate good practices and intended use with examples. • Hear the issues specific to the experiment and ROOT • Spread knowledge about new features Suzanne Panacek

  4. Class Schedule - Day 1 • Overview of the ROOT Framework • GUI basics • Command line basics • Finding Information (class reference guide) • Hands on exercises Suzanne Panacek

  5. Class Schedule - Day 2 • ROOT Commands and CINT • Discuss Exercises • Functions and Fitting • The Tree Viewer Suzanne Panacek

  6. Class Schedule - Day 3 • Building ROOT Trees • Reading Trees • Using Trees in Analysis • How to add your Own Class • With the Interpreter • With the compiler (shared library) • With ACLiC Suzanne Panacek

  7. Exercises • Session A • Use the Root Command line • Write an un-named and named script • Use the GUI to create objects and change their attributes • Fit a graph Suzanne Panacek

  8. Exercises • Session B • Use the Browser and Tree Viewer • Make a Profile and Contour Graph • Build an Event List from a Cut • Fill a histogram with random numbers • Use ACLiC Suzanne Panacek

  9. Exercises • Session C • Study an example analysis from Desy • Learn about TTree::MakeSelector • Save and retrieve a canvas to and from a Root File • Compute the integral of a function within a range Suzanne Panacek

  10. References • Class Site:http://www-pat.fnal.gov/root/ • Exercises (link on Class Site):http://www-pat.fnal.gov/root/class/exercises.htm • C++ is a prerequisite. Refresher site at: http://www-pat.fnal.gov/root/CPlusPlus/index.html Suzanne Panacek

  11. Users Guide 3.01a • New section on Folders and Tasks • New section on The Role of TObject (RTTI) • New section on Object Ownership • Updated I/O chapter • Streamers • Schema Evolution • MakeProject example Suzanne Panacek

  12. Users Guide 3.01a • New Tree chapter • 4 new examples on how to write a tree and read it back • tree1.C: several simple variables • tree2.C: a tree built with a C structure (Geant3) • tree3.C: using the new Friends feature • tree4.C: a tree with a class Event. • Added 35 examples of the Draw command expressions. Suzanne Panacek

  13. ROOT Problems/Limitations • For comments/suggestions on the Users Guide – rootdoc@root.cern.ch • Would like to see: • Chapter on 3D Graphics • Chapter on writing ROOT application with a GUI Suzanne Panacek

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