[Color_transp] [EXTERNAL] BCM4A weighted average

[John Matter]

Thank you for taking a look.

For the weights, I was initially using each region's uncertainty but I was
calculating the uncertainty wrong. I fixed this, but these runs still
looked off.

I changed the weighting to be the number of scaler reads in the region when
the beam is not tripped. I believe this is what we discussed in a recent
meeting.

I updated the elog entry with the new values.

https://hallcweb.jlab.org/elogs/Color+Transparency/33

- John


On Mon, Feb 3, 2020 at 7:02 PM Dipangkar Dutta <ddutta07 at gmail.com> wrote:

> Hi John,
> I looked through your plots. Most of them make sense. But there are a
> few runs which seem to be lower than that one expects from visual
> inspection, sometime they are quite a bit lower.
> And the pattern seems to be that those runs where the blue point is
> larger than the red point they seem to have a problem (ie the av.
> weighted current seems too low).
> Specifically, look at runs 2279, 2283, 2429, 2430, 2431, 2432, 3188
> Cheers
> Dipangkar
>
> On Mon, Feb 3, 2020 at 3:14 PM John Matter <jcm6fv at virginia.edu> wrote:
> >
> > Hi all,
> >
> > I just posted some slides about the BCM averaging. If the averages look
> sensible to everyone, I will update the spreadsheet.
> >
> > https://hallcweb.jlab.org/elogs/Color+Transparency/33
> >
> > - John
> > _______________________________________________
> > Color_transp mailing list
> > Color_transp at jlab.org
> > https://mailman.jlab.org/mailman/listinfo/color_transp
>
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