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Install ROOT

Follow these steps

Download

• First the ROOT framework itself
  • Go to ROOT web site
  • Select the Download menu option
  • Select the link .... Pro, version 6.04/00 recommended (see also the release notes)
  • Go down to the link for OSX, 10.10 x86-64 with clang 6.1, version 6.04.00 tar.gz or dmg (133 MB).
  • Click on the "dmg" file and it will download.
  • Find the ROOT dmg file and install ROOT ... following obvious steps.
• Now the ROOT Userguide
  • This in under "Documentation"
  • Choose the one sided pdf option ... you will consult this often

Set your environment

• Get the instructions from the link in the line "After downloading and unpacking please read the included README/README file on how to set the necessary environment variables." which you see at the bottom of the page where all the versions for download are.
• You will need to make your /etc/bashrc file automatically run a script to set the Environment by inserting this string in the file. ". <pathname>/root<version>/bin/thisroot.sh"
• <pathname> is where the root installation went. Probably /Applications/.

Check ROOT works

• issue the command "root" in a shell.
• you must open the shell afresh to get the updated environment from the previous step

Learn ROOT

• Do Chapters 2-5 as a Tutorial
  • Fire up ROOT ....
  • Have the UserGuide open
  • Have your editor open
  • Some examples are one liners ... enter them directly into the ROOT window
  • Some examples you must save as a code fragment.
    • Use your editor to do this.
    • You can give the extension .cpp again
    • Once again ... a folder per example !
    • Run the code by typing .x <filename> in the ROOT session
• If you want to be more expert .. then also learn
  • chapters 6, 7, 12