[Halld-offline] getting the right calibration in MC

[Mark Ito]

We probably should have some kind of policy about how to adjust to 
differences between real and MC data. Clearly, the less adjustment the 
better...

On 02/09/2015 05:38 PM, Sean Dobbs wrote:
> Matt,
>
> On Mon, Feb 9, 2015 at 3:19 PM, Shepherd, Matthew 
> <mashephe at indiana.edu <mailto:mashephe at indiana.edu>> wrote:
>
>
>     Maybe this functionality is not needed if the flag
>     above switches what the CCDB serves up.  For
>     that to work, the algorithm has to be the same
>     for both data and MC at that stage in the reconstruction
>     but just have different values of the CCDB constants.
>
>
> Selecting the "mc" variation as Paul described will return tables of 
> MC constants, assuming the MC-specific tables have been added.  If 
> not, the default tables will be returned (presumably with constant 
> values appropriate for data).
>
> There's not currently any way to automatically use different 
> algorithms for data and MC, as far as I'm aware.  In principle, one 
> could check to see if the selected variation is "mc" or something 
> else, and use that to select different algorithms, data tags, or 
> something like that, but I'm not sure if that's something we want to 
> allow.
>
>
> Cheers,
> Sean
>
> -- 
> Sean Dobbs
> Department of Physics & Astronomy
> Northwestern University
> phone: 847-467-2826
>
>
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-- 
Mark M. Ito, Jefferson Lab, marki at jlab.org, (757)269-5295

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