hps-java/scripts

diff -N makeTTreeFromTxtFile.C
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ makeTTreeFromTxtFile.C	14 Nov 2013 02:43:23 -0000	1.1
@@ -0,0 +1,21 @@

+void makeTTreeFromTxtFile(const char* txtfile="../../reco/run/twotrackAnlysisTuple.txt") {
+
+  TString file = gSystem->BaseName(txtfile);
+  TString outfile(file);
+  outfile.ReplaceAll(".txt",".root");
+  TString dir = txtfile;
+  dir.ReplaceAll(file,"");
+  if(dir.Length()==0) dir = "./";
+  cout << "Input file: " << file << endl;
+  cout << "Output file: " << outfile << endl;
+  cout << "output dir: " << dir << endl;
+  
+  TFile* f = new TFile(TString::Format("%s/%s",dir.Data(),outfile.Data()),"RECREATE");
+  TTree* T = new TTree("tree","data from ascii file");
+  Long64_t nline = T->ReadFile(txtfile,"",' ');
+  cout << "Read " << nline << " lines" << endl;
+  T->Write();
+  if(f->IsOpen()) f->Close();
+  
+
+}