Hi
Estimating a single component won;t work I'm afraid, try setting this to something higher than 1...
hth
Christian
On 7 May 2012, at 19:24, Varina Wolf wrote:
> Hello experts,
>
> With this command, I get the error at the bottom. I have set this for 2 subjects as a test case, after running FEAT with denoising, followed by a loop to apply resampling to output the filtered_func_2_standard.
> What do you think I might be missing?
>
> melodic -i .filelist-2 -o groupmelodic.ica -v --nobet --tr=2 --report --guireport=report.html --bgimage=${FSLDIR}/data/standard/MNI152_T1_2mm_brain -d 1 --mmthresh=0.66 --Ostats -a concat
>
> Melodic Version 3.10
>
> Melodic results will be in groupmelodic.ica
>
> Create mask ... done
> Reading data file /mnt/hgfs/melodicdesk/NiftiPatientData/A-AVW030912EL-nifti/A-A_Rest_5-5Feat.feat/denoised_data_.feat/filtered_func2standard ... done
> Estimating data smoothness ... done
> Removing mean image ... done
> Reading data file /mnt/hgfs/melodicdesk/NiftiPatientData/A-BVW050611-nifti/A-BVW050611_Rest_300_Last_5-5Feat.feat/denoised_data_.feat/filtered_func2standard ... done
> Removing mean image ... done
> Excluding voxels with constant value ... done
>
> Normalising jointly by voxel-wise variance ... done
>
> Initial data size : 295 x 364567
>
> Reading data file /mnt/hgfs/melodicdesk/NiftiPatientData/A-AVW030912EL-nifti/A-A_Rest_5-5Feat.feat/denoised_data_.feat/filtered_func2standard ... done
> Removing mean image ... done
> Reading data file /mnt/hgfs/melodicdesk/NiftiPatientData/A-BVW050611-nifti/A-BVW050611_Rest_300_Last_5-5Feat.feat/denoised_data_.feat/filtered_func2standard ... done
> Removing mean image ... done
>
> Data size : 2 x 364567
>
> Starting PCA ... done
> Start whitening using 1 dimensions ...
> retaining 3.89617 percent of the variability
> ... done
>
> Starting ICA estimation using concat
>
> Step no. 1 change : 1.11022e-16
> Convergence after 1 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_ICstats
> groupmelodic.ica/mask
> ...done
> Creating report index page ...Floating point exception
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