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Hi - You might want to use avwmeants to extract your time series from a mask/voxel coordinates (note that the --showall option is what you want). Cheer, Saad. On 6 Jul 2007, at 18:01, Heather Cogswell wrote: > Hi FSL users, > I'm an FSL newbie, so bear with me!! I'm trying to create a list of > coordinates of the active voxels from a region of interest in a 4D- > data set. > Is there a simple way of doing this? > > Based on a previous email, I've tried using avwroi for each voxel > seperately, then avw2ascii and cat to put the results into a new > file (see > below). However, I don't want to do each voxel seperately!! > > e.g. > avwroi input output 20 1 20 1 10 1 will extract one voxel and > save the values in output > avw2ascii output output2 will generate t files with one value in (t > being the length of the tc) > cat output2* > time-course.txt > > Thanks, > Heather ------------------------------------------------------------------------ --- Saad Jbabdi, Postdoctoral Research Assistant, Oxford University FMRIB Centre FMRIB, JR Hospital, Headington, Oxford OX3 9DU, UK +44 (0) 1865 222545 (fax 222717) [log in to unmask] http://www.fmrib.ox.ac.uk/~saad ------------------------------------------------------------------------ ---