Legacy tutorials

Legacy Tutorials.

Demos and benchmarks

You can execute the scripts in $ROOTSYS/tutorials (or sub-directories) by setting your current directory in the script directory or from any user directory with write access.

Several tutorials create new files. If you have write access to the tutorials directory, the new files will be created in the tutorials directory, otherwise they will be created in the user directory.

You can start by executing the standard ROOT demos with a session like:

root > .x demos.C

or

root > .x $ROOTSYS/tutorials/demos.C

You can execute the standard ROOT graphics benchmark with

root > .x benchmarks.C

or

root > .x $ROOTSYS/tutorials/benchmarks.C

Some of ROOT's tutorials demonstrate interfaces that are not recommended anymore, because ROOT or C++ itself now offer superior ones. These have been moved here "for the record".

Topics
	Containers tutorials
	Examples showing the "containers' classes" usage.
	Legacy g3d tutorials
	Examples for ROOT's 3D NODES (obsolete)
	Legacy histogram tutorials
	Examples for ROOT's histograms (legacy)
	Net tutorials
	Examples showing the net classes.
	Spectrum tutorials
	Examples showing the TSpectrum and TSpectrumPainter usage.
	TSPlot tutorials
	This tutorial illustrates the use of class TSPlot.
	Math tutorials
	Examples showing the math classes usage.
	Multi Layer Perceptron tutorials
	Examples showing the Multi Layer Perceptron classes.
	Proof tutorials
	These examples aim to illustrate the usage of PROOF.
	Regexp tutorials
	Examples for ROOT's regular expressions.
	Thread tutorials
	Thread examples.
	TTree tutorials
	Example code which illustrates how to use ROOT trees and ntuples.

Files
file	benchmarks.C
	This macro run several tests and produces an benchmark report.
file	geant3tasks.C
	This script is a representation using TTasks of the Geant3 simulation program This example uses directly TTask objects.
file	htmlex.C
	This file demonstrates how THtml can document sources.
file	mp104_processH1.C
	Illustrate the usage of the multiproc to process the H1 analysis example.
file	mp_H1_lambdas.C
	Lambdas used to check and fit the result of the H1 analysis.
file	mt301_TTaskGroupSimple.C
	Shows how to run items of work asynchronously with a TTaskGroup.
file	MyTasks.cxx
	A set of classes deriving from TTask.
file	PhaseSpace.C
	Example of use of TGenPhaseSpace.
file	ProofNtuple.C
	Selector to fill a simple ntuple.
file	ProofNtuple.h
	Selector to fill a simple ntuple.
file	ProofPythia.C
	Selector to generate Monte Carlo events with Pythia8.
file	ProofPythia.h
	Selector to generate Monte Carlo events with Pythia8.
file	rootalias.C
	Defines aliases:
file	rootenv.C
	Produce a picture of the ROOT environment.
file	rootmarks.C
	Prints a summary of all ROOT benchmarks (must be run before).
file	tasks.C
	Example of TTasks.