From 31572b9ed22d1c9fba9ad73d38b08fd509553d30 Mon Sep 17 00:00:00 2001
From: cvetan <cvetan@f7af4fe6-9843-0410-8265-dc069ae4e863>
Date: Wed, 10 Feb 2010 14:46:50 +0000
Subject: [PATCH] Added possibility to introduce downscaling in the selection
 of raw-data event based on a logical expression of trigger classes. The
 syntax is <logical expression> followed by % and N, where N is a integer
 downscaling factor.

---
 RAW/AliRawReader.cxx | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/RAW/AliRawReader.cxx b/RAW/AliRawReader.cxx
index a336d4693f7..09b4f4a7068 100644
--- a/RAW/AliRawReader.cxx
+++ b/RAW/AliRawReader.cxx
@@ -474,6 +474,8 @@ Bool_t AliRawReader::IsEventSelected() const
 	expr.ReplaceAll(Form("[%d]",itrigger),"0");
       }
     }
+    // Possibility to introduce downscaling
+    expr.ReplaceAll("%",Form("&& !%d %%",GetEventIndex()));
     Int_t error;
     if ((gROOT->ProcessLineFast(expr.Data(),&error) == 0) &&
 	(error == TInterpreter::kNoError)) {
-- 
2.43.0