{
   //////  here giving my root ruple   
   TChain ch("Global");
   ch.Add("/localhome/avdhesh/sam_data_file/*.root");

   ch->MakeClass("invm");

   gROOT->LoadMacro("gausfit.C"); /// fit file
   gROOT->LoadMacro("macro.C");  /// main macro file

   tree = (TTree*)gDirectory->Get("Global");
   invm t(tree); 
   t.Loop(); 
 
   invm t(Global); 
   t.Loop(); 
 }