Hi
run fslsize on he input file to see how many volumes are contained in
the original image. The log file suggests that you're trying to run
melodic on a single 3D image - that won't work...
hth
Christian
On 7 Jul 2008, at 00:19, Xi-Nian Zuo wrote:
> Hi, Michael
>
> There are two issues perhaps helpful for solving your question:
> 1). Did you use MELODIC in GUI frame? If so, did you let MELODIC
> estimate
> the number of components automatically or set it by yourself?
> 2). How many time points were included in your fMRI data?
>
> Another suggestion is just same as Dr. Beckmann proposed in previous
> messages: please check your input files or settings in GUI.
>
> Best
> xinian
>
> On Sun, 6 Jul 2008 13:47:25 +0100, Michael Ewers <[log in to unmask]>
> wrote:
>
>> Hi,
>>
>> I would like to run an ICA analysis using the FSL-MELODIC tool on
>> fMRI scans
>> which I have spatially normalized using SPM2. First, the MPRAGE
>> scan was
>> normalized to a customized group template (of scans normlized to
>> the SPM
>> template). Second, I applied the resulting sn.mat to the fMRI scan,
>> converted it to the NIFTI format (fslchfiletype function) and
>> started
>> Melodic. However, I received the error message "Two many components
>> selected" (see below).
>>
>> The voxel size of the normalized sMRI scan was 1 x 1 x 1 mm, that
>> of the
>> original fMRI scan (3.75 x 3.75 x 5 mm) and the voxel size of the
>> normalized fMRI scan was 2 x 2 x 2 mm.
>>
>> I noted that there was an earlier message on a similar error
>> message posted,
>> However the explanation of wrong indication of file path does not
>> seem to
>> apply here.
>> http://www.jiscmail.ac.uk/cgi-bin/webadmin?A2=ind0709&L=FSL&P=R16776&I=-3
>>
>> Any suggestions would be greatly appreciated.
>>
>> Regards,
>> Michael
>>
>>
>> /usr/local/fsl/bin/fslroi prefiltered_func_data example_func 0 1
>>
>> /usr/local/fsl/bin/bet prefiltered_func_data
>> prefiltered_func_data_bet -F
>>
>> /usr/local/fsl/bin/fslmaths prefiltered_func_data_bet -thrp 10 -
>> Tmin -bin
>> mask -odt char
>>
>> /usr/local/fsl/bin/fslmaths prefiltered_func_data_bet -mas mask
>> prefiltered_func_data_bet
>>
>> /usr/local/fsl/bin/fslmaths mask -kernel gauss 2.12314225053 -fmean
>> mask_weight -odt float
>>
>> /usr/local/fsl/bin/fslmaths prefiltered_func_data_bet -kernel gauss
>> 2.12314225053 -fmean -div mask_weight -mas mask filtered_func_data -
>> odt float
>>
>> /usr/local/fsl/bin/fslmaths filtered_func_data -ing 10000
>> filtered_func_data
>> -odt float
>>
>> /usr/local/fsl/bin/fslmaths filtered_func_data -bptf 16.6666666667 -1
>> filtered_func_data -odt float
>>
>> /usr/local/fsl/bin/fslhd -x filtered_func_data | sed 's/ dt = .*/
>> dt =
>> '3.0'/g' | /usr/local/fsl/bin/fslcreatehd - filtered_func_data
>>
>> /usr/local/fsl/bin/fslmaths filtered_func_data -Tmean mean_func
>>
>> /bin/rm -rf prefiltered_func_data*
>> ERROR:: too many components selected
>>
>>
>> Melodic Version 3.05
>>
>> Melodic results will be in filtered_func_data.ica
>>
>> Create mask ... done
>> Reading data file filtered_func_data ... done
>> Estimating data smoothness ... done
>> Removing mean image ... done
>> =
>> =
>> =
>> =====================================================================
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