Hi FreeSurfer, I have analyzed my diffusion data using Tracula and combined the voxelwise diffusion measures across all subjects in one file (following the guidelines on the wiki). In this text file, I saw that for some of these voxels some people have NAs, so their tract is most likely shorter. I now would like to do t-tests for each voxel and plot these in freeview (as also suggested in the wiki).
Would you recommend to only take those voxels that have a value in each subject to keep the number of subjects consistent at each voxel ? Look forward to your thoughts on this. Best wishes Heidi
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