[Frost] About huge values in the CHI-SQ table
Eugene Pasyuk
pasyuk at jlab.org
Wed Mar 2 16:53:06 EST 2011
Sung,
I think the problem is with the initial values of the fit parameters.
I suggest you to set initial values by hand for the sector/superlayer
where chi^2 is bad from different sector where chi^2 is good and then do
the fit.
For instance, you have problem with sector 3. Take constants from sector
4 and use them as initial values for sector 3.
-Eugene
On 03/02/11 11:22, Sungkyun Park wrote:
> Hi All,
>
> At last meeting, I have mentioned the problem about huge CHI-SQ values.
> I had changed the Tmax values before fitting to remove them.
> However, that way is not solution for this problem.
> Even though I use any Tmax values, there is huge number.
>
> You can check the fitting functions and CHI-SQ tables in several Tmax values in the following web:
>
> http://hadron.physics.fsu.edu/~skpark/DC_Cal_g9b/DC_Cal_feb2811.html
>
> If you have any idea about this problem, let me know it.
>
> Best Wishes
>
> Sung
> Florida State University
>
>
> _______________________________________________
> Frost mailing list
> Frost at jlab.org
> https://mailman.jlab.org/mailman/listinfo/frost
-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://mailman.jlab.org/pipermail/frost/attachments/20110302/3de7055f/attachment.html
More information about the Frost
mailing list