Hi,
did you maybe run out of disk space? The estimation completes and it
does enter the code segment which writes results to disk - I can't
think of anything at that point which could go wrong in our i/o
code. so my guess would be that the system write call did not
complete. I suspect there is no 'melodic finished' message in the
log.txt? If not, does the binary continue to be run (what happens if
you check with 'top'?)
hth
Christian
On 19 Oct 2007, at 05:42, Zhen Zonglei wrote:
> Hi, all:
> When I used MELODIC ICA to do multi-sessions resting state fMRI
> analysis (three session's temporal concatenation,200 time points
> every session and delete first 3 volume) with FSL4.0.1, the program
> seemed run completely. But, no ICs were shown in 'high level
> MELODIC report' and only 'Input' and 'registration summary' were
> displayed. In addition, I can find 'melodic_IC.nii.gz' and other
> file in groupmelodic.ica directory.
> Can someone tell me what the problem is?
>
> Please help me.
> Zonglei Zhen
>
> The following is MELODIC logs:
> Melodic Version 3.05
> /nfs/h1/r1/jliu/new_soft_test/freesurfer/fsl/bin/melodic -
> i .filelist -o groupmelodic.ica -v --nobet --bgthreshold=3 --tr=3.0
> --report --guireport=../../report.html --bgimage=bg_image --
> mmthresh= 0.5 -a concat
> ---------------------------------------------
> Melodic results will be in groupmelodic.ica
> Create mask ... done
> Reading data file rest/
> gefunc1281420200RS2007080801LJHuangYis005a001_results.ica/
> reg_standard/filtered_func_data ... done
> Estimating data smoothness ... done
> Removing mean image ... done
> Reading data file rest/
> gefunc1281420200RS2007081601LJHuangYis005a001_results.ica/
> reg_standard/filtered_func_data ... done
> Removing mean image ... done
> Reading data file rest/
> gefunc1281420200RS2007091401LJhuangyis005a001_results.ica/
> reg_standard/filtered_func_data ... done
> Removing mean image ... done
> Excluding voxels with constant value ... done
> Normalising by voxel-wise variance ... done
>
> Initial data size : 197 x 23485
>
> Reading data file rest/
> gefunc1281420200RS2007080801LJHuangYis005a001_results.ica/
> reg_standard/filtered_func_data ... done
> Removing mean image ... done
> Reading data file rest/
> gefunc1281420200RS2007081601LJHuangYis005a001_results.ica/
> reg_standard/filtered_func_data ... done
> Removing mean image ... done
> Reading data file rest/
> gefunc1281420200RS2007091401LJhuangyis005a001_results.ica/
> reg_standard/filtered_func_data ... done
> Removing mean image ... done
>
> Data size : 219 x 23485
>
> Starting PCA ... done
> Start whitening using 73 dimensions ...
> retaining 83.8176 percent of the variability
> ... done
>
> Starting ICA estimation using concat
>
> Step no. 1 change : 0.993451
> Step no. 2 change : 0.377832
> ………………………………………….
> Step no. 45 change : 0.000605192
> Step no. 46 change : 0.000475788
> Convergence after 46 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
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