Hi, Dear Rooters: I use MakeSelector to analyze some data, since these files are very big, I want to specify total number of events I want to process. I first did: Global->NakeSelector("anal") then I wrote a main file that will chain files and process all files. The main file looks like this: #include "anal.h" anal *sel; TChain ch("Global"); int main(int argc, char** argv) { //code to chain files ch.Process(sel); } Then I compile my code and run it, now I want to know where can I specify number of events I want to process. I know how to do it interactively ch.Process("**.root", "", "", 10000), but I do not know how can I do it in my way. Thanks for any help! Best, Tao __________________________________ Do you Yahoo!? Yahoo! SiteBuilder - Free web site building tool. Try it! http://webhosting.yahoo.com/ps/sb/
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