[Rivet] question about run-averaged histograms

[Andy Buckley]

Sure, h.xMean() and h.xRMS() (or h.xStdDev(), depending on what measure 
of spread you actually want).

The resulting histogram will have only a single entry across the run, so 
maybe you actually want to use a Scatter1D or similar? Depends on what 
you want to do with it.

Andy


On 16/04/16 11:06, Raghav Kunnawalkam Elayavalli wrote:
> Hi Andy,
>
> Ahh yeah sorry I mean I wanted to find the average of a histogram at the
> end of the run and fill that average and RMS to another histogram. Is
> that doable?
>
> Sent from my Cyanogen phone
>
> On Apr 16, 2016 11:51 AM, Andy Buckley <a.g.buckley at gmail.com> wrote:
>
>     On 15/04/16 09:33, Raghav Kunnawalkam Elayavalli wrote:
>      > Hi Rivet experts
>      >
>      > I would like to get the full run-averaged value of some of my
>      > variables (which i store in !Dhistograms) and display that with
>      > another histograms. I should be able to just fill in my histograms
>      > during the run and in the finalize method, ask for the mean and fill
>      > that into my average histogram. But i wasnt able to find any mean
>      > function analogous to TH1::GetMean() in yoda
>      > https://yoda.hepforge.org/doxy/HistoBin1D_8h_source.html . Probably
>      > im looking in the wrong place and there are easier ways to do that?
>
>     Hi Raghav,
>
>     Can you explain in more detail what you want to do? You want to average
>     histograms over several independent runs? That would usually happen
>     *outside* Rivet -- the finalize() method is called at the end of each
>     independent run, not as a way of merging those runs together.
>
>     The yodamerge script might be what you are looking for, at least as an
>     example.
>
>     Andy
>
>     --
>     Dr Andy Buckley, Lecturer / Royal Society University Research Fellow
>     Particle Physics Expt Group, University of Glasgow
>


-- 
Dr Andy Buckley, Lecturer / Royal Society University Research Fellow
Particle Physics Expt Group, University of Glasgow