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Forum: Analysis
Re: None AIDA histogram analysis problem (Lei Zhu)
Date: 22 Jul, 2003
From: <tony_johnson@SLAC.Stanford.EDU>

> Hi, I need to analyze the data got in simulation. Now I have
> two histograms, both are AIDA::IHistogram1D*, with the same 
> x-axis range and bin number. I want to get the ratio of the 
> two datasets along x-axis, how to do it?

Hi, use the method, 

 AIDA::IHistogramFactory.divide(String name, IHistogram1D hist1,IHistogram1D hist2) 

Where name is the name of the new histogram, and hist1 and hist2 are the existing histograms to be divded. E.g.

     IHistogram1D* newHist = hf->divide("newHistName",hist1,hist2);

Where hf is a pointer to your AIDA::IHistogramFactory.

Tony

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1 None: Re: FW: AIDA histogram analysis problem   (Lei Zhu - 10 Aug, 2003)
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