move the event fill() before the clear

outputDigitization.cc

@@ -470,6 +470,8 @@ void generateWaveform(string fileName, bool DRAW){
 			}//end tile loop
 			if(DRAW) c->Print( Form("event%d.png",ev) );
 
+      outTree->Fill();
+
 			//Delete all TF1 objects, clear vectors, reset histograms
 			for(int tile = 0; tile < 16; tile++){
 				waveforms[tile]->clear();
@@ -481,7 +483,6 @@ void generateWaveform(string fileName, bool DRAW){
 				pulses[tile].clear();
         if(DRAW)h[tile]->Reset();
 			}//end tile loop
-	    outTree->Fill();
 
 		}//end event loop
 		cout << endl;