Introduction to the ROOT system
Day 1 (22 June): || Introduction (1 hour),
Sessions A (2 hours),
Sessions B (2 hours)
Day 2 (23 June): || Sessions C (2 hours),
Sessions D (2 hours)
The aim of these exercises is to illustrate the C++ interpreter,
the command line, named and unnamed scripts. Some simple objects are created
and drawn in a canvas where they can be manipulated/edited via the mouse.
In this session, one plays with histograms, functions, random number
generators, ntuples, cuts and the corresponding graphics operations.
In this session, one illustrates how to process chained ntuple files.
The data are taken from the DESY H1 micro-DSTs. The example shows
how to use a class (the skeleton has been automatically generated
by the TTree::MakeSelector function) to loop on the files , perform some
cuts and fill two histograms with some physics quantities.
In this session, we will play with the data generated by the ATLFAST
simulation program and look at an event display.