Chain of Ntuples

This example simulate a CERN population of 335400 people. 
A 10MB ntuple chain

      opt stat
6     SET SMGU 0.2 ; SET SMGR 0.5 ; SET CSIZ .35                                               
1     CHAIN MB05   cwn_aptuple.hbook cwn_aptuple.hbook cwn_aptuple.hbook  _                    
                   cwn_aptuple.hbook cwn_aptuple.hbook
1     CHAIN MB1    MB05 MB05                                                                   
1     CHAIN MB10   MB1 MB1 MB1 MB1 MB1 MB1 MB1 MB1 MB1 MB1                                     
2     CHAIN                                                                                    
3     CHAIN MB1>                                                                               
4     CD //MB10                                                                                
      Nt/plot 11.age
5     CHAIN -MB10 ; CHAIN -MB1 ; CHAIN -MB05
  1. Create the chain.
  2. List all the chains.
  3. Give the tree of the chain MB1 .
  4. Set the current chain ( MB10 ).
  5. Delete the chains MB10 , MB05 and MB1 .
  6. Changes the statistics size and position. 
List of the chains and tree of  MB1


  MB05      MB1       MB10

  MB1
     MB05
        cwn_aptuple.hbook   cwn_aptuple.hbook   cwn_aptuple.hbook
        cwn_aptuple.hbook   cwn_aptuple.hbook
     MB05
        cwn_aptuple.hbook   cwn_aptuple.hbook   cwn_aptuple.hbook
        cwn_aptuple.hbook   cwn_aptuple.hbook

PAW TutorialLast update: 1999/04/01 14.59
Olivier.Couet@Cern.Ch