[ROOT] adding histograms

From: Dennis C. Arogancia (dennis@physics.msuiit.edu.ph)
Date: Sun Apr 01 2001 - 00:51:23 MEST 

Hi rooters,


	I have generated several rootfiles, say,
anal00.root, anal01.root, anal02.root, anal03.root, and anal04.root. Each
rootfile contains 1-dimensional histograms such as hEvis, hPt, hPl,
hWmass, hCoshtrk, etc. I want to add all the histograms each root file
and put the result in a single rootfile. How do i do this?



dennis

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