Hi - the time series modelling isn't happy - I'm guessing that there's a
problem with your design. Could you send in the design.gif file (you'll
probably need to email it to me directly). The duration of events isn't
allowed to be zero, but can be short - for example, 0.1s.
On Thu, 23 Sep 2004, Cornelius Werner wrote:
> Dear all,
> I've been toying with FSL for some time now. After having had some
> installation issues (non-Redhat-distribution of Linux), I finally got
> FSL running.
> BUT: it won't give me any results beyond the preprocessing steps.
> Some info: I entered a 4d-file containing an event-related,
> two-factorial (3x3) experiment (one subject only for the time being)
> with 728 volumes, TR=3.02, Highpass=130 as a source. I set up the design
> matrix with the 3-columns option (something like "104.3 2 1" and so
> forth for each EV; I also tried entering "104.3 0 1" to simulate a stick
> function as in SPM2). After that I entered my contrasts (10, but also
> tried 2 only)
> The rest was pretty much default settings.
> In the result.html file there is nothing apart from the usual
> preprocessing stuff, the design matrix and the covariance table - no
> statistics, no brains, no blobs.
> During logging, following lines attracted my attention:
> Prewhitening and Computing PEs...
> Percentage done:
> Saving results...
> Unthresholding Series... Completed
> Saving image... Completed
> Thresholding Series... Completed
> Unthresholding Series...
> /home/zap/Work/FSL/fsl-3.1/fsl//bin/contrast_mgr -f design.fts stats
> AvwOpen: Error while opening header!: No such file or directory
> Rendering using zmin=2.3 zmax=8
> /home/zap/Work/FSL/fsl-3.1/fsl//bin/tsplot . -f filtered_func_data
> Cannot open volume ./stats/pe1.hdr for reading!
> mkdir tsplot
> The full log is attached to this mail.
> Being aware of those FSL RAM/swap issues, I had increased my
> swap-partition to 6 GB while having 512MB of RAM. My system monitor
> indicated a full RAM usage and 2.6GB of used swap - leaving some leeway
> in my opinion.
> Now: what can I do to have FSL run through it all?!? Any help would be
> greatly appreciated!
> Best regards,
> Cornelius Werner
> Cornelius Werner
> Cognitive Neurology
> Institute of Medicine
> Research Center Juelich
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