Hi - I'm guessing that this means that the design matrix and/or
contrast that you're feeding into MELODIC (if you are doing that) are
not valid? If you could send those files we could have a look.
Cheers.
On 20 Jul 2008, at 07:26, Sascha Purmann wrote:
> Dear FSL List:
>
> I am trying to run tica with melodic (Melodic Version 3.05). First
> try on my
> own data failed, so I tried it on the fsl course data. Again, no
> success. I
> tried it on different debian/ubuntu systems (e.g. ubuntu hardy,
> amd64bit,
> 4GB Ram) and get errors on all systems.
>
> I get a "segmentation fault" error messages in logs/gica:
>
> --snip--
>
> [...]
> Step no. 67 change : 0.000468496
> Rank-1 approximation of the time courses; change : 0.0108398
> Convergence after 67 steps
>
> Sorting IC maps
> Calculating T- and S-modes
>
> Writing results to :
> groupmelodic.ica/melodic_IC
> groupmelodic.ica/melodic_Tmodes
> groupmelodic.ica/melodic_Smodes
> groupmelodic.ica/melodic_mix
> groupmelodic.ica/melodic_FTmix
> groupmelodic.ica/melodic_PPCA
> groupmelodic.ica/melodic_ICstats
> groupmelodic.ica/mask
> Segmentation fault
>
> [...]
>
> --snap--
>
>
>
> In another case (another computer) I get:
>
> --snip--
>
> [...]
>
> Step no. 85 change : 0.000378202
> Rank-1 approximation of the time courses; change : 0.013905
> Convergence after 85 steps
>
> Sorting IC maps
>
> fdtr domain error
>
> [...]
>
> DOF cannot be zero or negative!
>
> stdtr domain error
>
> ndtri domain error
>
> [...]
>
> Segmentation fault (core dumped)
>
> --snap--
>
> How can I figure out what goes wrong and how to fix it?
>
> Cheers,
>
> Sascha
>
> fimlab.uni-hd.de
>
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Stephen M. Smith, Professor of Biomedical Engineering
Associate Director, Oxford University FMRIB Centre
FMRIB, JR Hospital, Headington, Oxford OX3 9DU, UK
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