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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 >========================================================================