Re: [fluka-discuss]: gplevbin and errorbars

From: Zhiyi Liu <zhiyil_at_triumf.ca>
Date: Tue, 10 Sep 2013 10:01:15 -0700

Hi Joachim,
Thank you so much for your reply.

You are right, the file that I provided is only generated in one single
run. It is good to know the error calculation is done only for
multi-run/cycles (although this does not make sense to me). It will be
great if this is documented somewhere easy to find.

Thanks,
Zhiyi.

On 10/09/2013 7:36 AM, Joachim Vollaire wrote:
>
> Hi
>
> I have converted your file
> (http://trshare.triumf.ca/~zhiyil/shld_in_sand001_fort.22
> <http://trshare.triumf.ca/%7Ezhiyil/shld_in_sand001_fort.22>) to Ascii
> using the flutil/usbrea utility. If I am not mistaken the file at
> the following location is the results of one single FLUKA run and
> contains the 125x250x100 value only (it would have a block with value
> and errors if it would be an averaged outputs).
>
> To calculate the statistical deviation you need to run several jobs
> (minimum recommended is 5) with different random number seeds and
> average the results (straightforward with FLAIR) and the errors will
> be computed in this step
>
> Regards
>
> Joachim
>
> *From:*owner-fluka-discuss_at_mi.infn.it
> [mailto:owner-fluka-discuss_at_mi.infn.it] *On Behalf Of *Zhiyi Liu
> *Sent:* 09 September 2013 20:34
> *To:* fluka-discuss_at_fluka.org
> *Subject:* [fluka-discuss]: gplevbin and errorbars
>
> Hello,
> I generated USRBIN files and use FLAIR to plots them in 1D
> projections. However, I checked the *.dat files generated by gplevbin,
> all errors are zero although I select to show error bars. No idea if
> the problem is from the USRBIN files or gplevin algorithm to calculate
> errors? My example USRBIN file (binary) is attached here:
>
> http://trshare.triumf.ca/~zhiyil/shld_in_sand001_fort.22
> <http://trshare.triumf.ca/%7Ezhiyil/shld_in_sand001_fort.22>
>
>
>
> Thanks,
> Zhiyi Liu
> TRIUMF
>
Received on Tue Sep 10 2013 - 19:58:54 CEST

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