Merge root files

From: Nadeesha Manohari Wickramage <nadeesha.manohari.wickramage_at_cern.ch>
Date: Mon, 25 Aug 2008 17:27:39 +0200

Hi ALL,

I'm using root version 5.18/00a and I 'm trying to merge some root files. I have to nearly 50 files to merge. I use "hadd results.root pattree_Chowdernew*.root" command but I got the error masssage as following.

 Error: Symbol haddresults is not defined in current scope (tmpfile):1: Error: Failed to evaluate haddresults.rootpattree_Chowdernew

Warning: Illegal numerical expression .root (tmpfile):1:
Warning: Illegal numerical expression .root (tmpfile):1:
Warning: Illegal numerical expression .root (tmpfile):1:
Warning: Illegal numerical expression .root (tmpfile):1:
(const double)0.00000000000000000e+00

*** Interpreter error recovered ***

Please let me know what is the Solution. This is very first time I'm using root to merge files.

Thank you,
Nadeesha Received on Mon Aug 25 2008 - 17:27:43 CEST