Links to Documents and Mailinglists
The ROOT homepage is at CERN, containing useful

• Tutorials containing lots of examples mainly for presentations and everyday work  and Howtos on a somewhat lower level and in more detail

• The RootTalk mailing has fairly high traffic, but is the ultimate forum for questions. It is searchable (very useful).

At SLAC, there is

• a FAQ (frequently asked questions)

• a Tutorial given on June 19, 2000.

• a Tutorial given on February 27, 2002.

• BaBar Offline Workbook which has two chapters with walkthrus of using ROOT code

• a mailing list root-at-slac, where the installation of new and removal of old ROOT versions here at SLAC is announced. The archive is available on the web.

• a Hypernews dedicated obtaining help in the interactive use of ROOT.

• RooFit

Fermilab has invested quite a bit of effort in ROOT. They have a page on ROOT.

How to start ROOT
There are several ways to start up ROOT (implemented on Linux2, Linux24, and SunOS58; the new ROOT versions no longer run on the older SunOS versions):

• Setup ROOT manually: decide on one of the installed versions (probably the most recent production version), set two environment variables and improve your path:
  • setenv ROOTSYS /afs/slac.stanford.edu/package/cernroot/30309
  • setenv LD_LIBRARY_PATH $ROOTSYS/lib
  • addpath2 PATH $ROOTSYS/bin
  With these settings, you can start ROOT with the command
  • root
  Please see the tutorials above for more details on how to proceed afterwards.
• In BABAR you have a script called bbrroot that gives you a ROOT version matching your $BFCURRENT. Make sure that $ROOTSYS and $LD_LIBRARY_PATH are not set when using BaBar's ROOT setup or compiling your testrelease (except if you know what you are doing).