Hi - this looks OK. If you have definitely selected the fixed-effects
option and have the latest version of FSL (maybe worth re-downloading to
be sure) then this should run ok. Did you check the registration summary
page on the .gfeat report? If everything still isn't working, then upload
the .gfeat directory for us to take a quick look at:
Please upload the files in a single compressed tarfile to
http://www.fmrib.ox.ac.uk/cgi-bin/upload.cgi
and then email me the upload ID.
Cheers, Steve.
On Tue, 13 Dec 2005, Andrew Silver wrote:
>
> Hi Steve,
> I tried running it with the EV value of 1, but i still got the same error.
> So, I ran the fslerrorreport. It is attached here. Thanks.
> -Andy
>
> -----Original Message-----
> From: FSL - FMRIB's Software Library
> To: [log in to unmask]
> Sent: 12/13/2005 1:21 PM
> Subject: Re: [FSL] nifti_image_read
>
> Hi - I assume that the 2 first-level FEATs ran OK and the report.html
> webpage reports look ok.
>
> If you want to combine these two at higher-level you must select the FE
> (fixed-effects) option in the higer-level FEAT setup. Presumably you
> want
> a single EV with a 1 for each value. Does this run ok? If not, please
> run
> fslerrorreport from inside the .gfeat directory and email that in.
>
> Cheers, Steve.
>
>
> On Tue, 13 Dec 2005, Andrew Silver wrote:
>
> > Hi Christian,
> > I checked all three suggestions you made and all three checked out.
> One
> > thing I'm not sure of is if I have everything set in correct
> directories.
> > My analysis is simply a single subject with 2 runs. I am trying to
> combine
> > the first level analyses that we did on our two runs by using a
> higher-level
> > analysis. When I select the feat directories, I'm doing so from
> inside a
> > folder I created on my desktop. However, I'm not sure if I need to
> specify
> > an output directory or not. I want to make sure that the error is not
> > coming up because feat can't find filtered_func_data's header file.
> >
> > Also, a problem I'm having is trying to determine how many EVs I
> should have
> > and what values should be entered for input 1 and input 2. The design
> is
> > ABAB block design, where A is a control (baseline) task, and B is the
> task.
> > Can you assist me with the design matrix. Thanks.
> > -Andy
> >
> > _____
> >
> > From: FSL - FMRIB's Software Library [mailto:[log in to unmask]] On
> Behalf
> > Of Christian Beckmann
> > Sent: Thursday, December 08, 2005 2:52 PM
> > To: [log in to unmask]
> > Subject: Re: [FSL] nifti_image_read
> >
> >
> > Hi
> >
> > it can't open the file 'filtered_func_data' - have you made sure
> that
> > (i) the file exists? (ls)
> > (ii) it's a proper nifti file (e.g. run 'avwstats filtered_func_data
> -S' )
> > (iii) it opens in fslview
> >
> > it might me as simple as you being over quota so that the nifti file
> wasn't
> > written correctly.
> > cheers
> > christian
> >
> > PS: Are you running this as fixed-effects? ME doesn't make sense on
> one
> > subject/two sessions
> >
> >
> > On 8 Dec 2005, at 18:53, Andrew Silver wrote:
> >
> >
> >
> > I am running a higher-level analysis on ONE subject with two sessions.
> I am
> > getting the following error:
> >
> > **ERROR: nifti_image_read(filtered_func_data): can't open header file
> >
> > **ERROR: nifti_image_open(filtered_func_data): bad header info
> >
> > ERROR: failed to open file filtered_func_data
> >
> > ERROR: FslGetDim: Null pointer passed for FSLIO
> >
> > We've seen emails in the archive with the same error but we're still
> not
> >
> > sure how to fix the problem. Thanks.
> >
> > -Andy Silver
> >
> >
> >
>
>
--
Stephen M. Smith DPhil
Associate Director, FMRIB and Analysis Research Coordinator
Oxford University Centre for Functional MRI of the Brain
John Radcliffe Hospital, Headington, Oxford OX3 9DU, UK
+44 (0) 1865 222726 (fax 222717)
[log in to unmask] http://www.fmrib.ox.ac.uk/~steve
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