Thank you so much for your help. The fwhm of 0 and 5 both work. I was wondering 
if you knew of any references or sites I could reference to justify this level 
of smoothing.

Tara

----- Original Message -----
From: "Marie Schaer" <marie.sch...@unige.ch>
To: "Douglas N Greve" <gr...@nmr.mgh.harvard.edu>
Cc: "Nick Schmansky" <ni...@nmr.mgh.harvard.edu>, freesurfer@nmr.mgh.harvard.edu
Sent: Wednesday, September 4, 2013 10:36:14 AM
Subject: Re: [Freesurfer] Monte Carlo Simulation in Qdec


Hi Tara,
You can try with fwhm=0 as Doug suggested, or 5 if it works. I'm still trying 
to see whether the level of fwhm could be modified in qdec so that you can 
input your own level (e.g. 1 or 2, instead of the specified 0-5-10-15-20-25).

Nick,
Do you know if there is a keyword that can be changed in .Qdecr to add 
different smoothing values to the FWHM menu in Qdec?

Thanks!

Marie



On Sep 4, 2013, at 8:03 AM, Douglas N Greve <gr...@nmr.mgh.harvard.edu>
 wrote:

> 
> Hi Tara, The problem is that the lGI is already very smooth and then it 
> gets smoothed again. This causes the total smoothness level to go beyond 
> what has been done for the simulation. Try using fwhm=0.
> 
> doug
> 
> 
> On 09/04/2013 09:48 AM, Tara Ann Miskovich wrote:
>> Hello,
>> 
>> I am conducting group analyses with LGI data in qdec, and I am having an 
>> issue with the monte carlo simulation I am hoping to get help with.
>> 
>> Under design I leave the Smoothing (FWHM) at 10, and when I try to run the 
>> monte carlo simulation after running the analysis I get this error: Error in 
>> Monte Carlo simulation: Error running mri_surfcluster. Plus in the terminal 
>> I get an error: mri_surfclusterfwhm.dat: 37.226284, rounded to 38 Error: 
>> fwhm out-of-range (< 1 or > 30)!
>> 
>> Should I be using fwhm0 for LGI data?
>> 
>> Thank you for your help!
>> 
>> Tara
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>> 
> 
> -- 
> Douglas N. Greve, Ph.D.
> MGH-NMR Center
> gr...@nmr.mgh.harvard.edu
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