[ROOT] Integral of a histogram

From: Luigi Esposito-MACRO (Luigi.Salvatore.Esposito@bo.infn.it)
Date: Thu Jun 12 2003 - 01:09:46 MEST 

Hello,
how can I do the integral of a histogram between two values and not two 
bin indeces?
I mean something like that:
h = new TH1F("h","",100,-3,3);
h->FillRandom("gaus");
h->Integral(-1.5,0.8);

Thank you,

	Luillo

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