[Rivet] [Rivet-svn] r2451 - trunk/src/Analyses

[Lars Sonnenschein]

Hello Andy
looking at the dps capabilities it doesn't look like the multiplication
of two dps is implemented. Also I don't see how to set values and errors 
in histogram bins.
I also didn't find a conversion from histo to dps or a dps constructor 
which accepts a histo as copy argument.

The only way I see right now to get this working would be to copy by hand 
(bin by bin) the histo entries into a dps in a for loop. At the same time 
I can multiply the correction factors and set the right resulting errors.

Of course the correction factors could be computed later on offline.
The two relevant histos to be divided come with the reference histograms.
Without correction the observables look about alright (see attached 
plots). Looking at the correction factors, they would move the generated 
MC distributions into the right direction.

So far

	Lars


On Tue, 18 May 2010, Andy Buckley wrote:

> On 17/05/10 13:49, blackhole at projects.hepforge.org wrote:
> > Author: sonne
> > Date: Mon May 17 14:51:15 2010
> > New Revision: 2451
> > 
> > Log:
> > some calMET and vetoed final state updates. It seems to me I need
> DataPointSets in CDF_1994_S6217184 to get the right errors for the
> correction factors filled. The question is now how to multiply histo
> with dps
> 
> Hi Lars,
> 
> You can't multiply histos by DPS, as far as I know. Have a look through
> the interface of DataPointSetFactory and HistogramFactory... you might
> be able to convert the histos to DPSes and then multiply them. Sorry,
> this is the sort of thing for which we really need replacement
> histogramming... I've started working again on that.
> 
> Andy
> 
> 

-- 

 
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Dr. rer. nat. habil. Lars Sonnenschein    
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