May 20, 2004

Likelihood Fitting tools::[View]

There are 2 kinds of software which are popular in past few years in stastic area, one is felix, the other one is RooFit.

felix running on DEC Digital machine.
RooFit based on root system and running in Linux and all other system than root can running.

unbinned maximum likelihood fit using RooFit would save me a lots of time :)

Install process..
1] Download root for gcc at right version
http://root.cern.ch/

2] setup root system:
setenv ROOYSYS ...
setenv setenv LD_LIBRARY_PATH ....

3] connect CVS spool of roofit
cvs -d:pserver:anonymous@cvs.roofit.sourceforge.net:/cvsroot/roofit login
cvs -z3 -d:pserver:anonymous@cvs.roofit.sourceforge.net:/cvsroot/roofit co modulename

download all needed files

4] compile
RooFitModels
gmake -f GNUmakefile.standalone
RooFitCore
gmake -f GNUmakefile.standalone

5] cp libRooFitModels.so & libRooFitCore.so
to
$ROOTSYS/lib

6] running
root> gSystem->Load("libRooFitCore.so") ;
root> gSystem->Load("libRooFitModels.so") ;

RooFit -- Version 1.04, developed by Wouter Verkerke and David Kirkby
Copyright (C) 2000-2004 University of California & Stanford University
All rights reserved, please read http://roofit.sourceforge.net/license.txt
root [1] RooRealVar x( "x" , "x", -10 , 10 );
root [2] RooPlot * xframe =x.frame();
root [3] xframe->Draw();
: created default TCanvas with name c1
:-D

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