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Dear Stephen, Thank you for your information. I think I can't afford a new 64-bit machine and thus plan to carry out subsequent analysis using SPM. May I ask whether those *nonlinear_hr* images are in MNI space and ready to perform statistical analysis w/o spatial smoothing? Thank you very much! Best Regards, Deqiang On 1/28/07, Steve Smith <[log in to unmask]> wrote: > > Hi, please see previous posts on this. For this huge analysis you > will need a 64-bit machine, e.g. a 64-bit linux or Mac. > Cheers. > > > On 27 Jan 2007, at 09:41, Kenneth Qiu wrote: > > > Dear FSLexperts, > > > > I'm currently using TBSS to analyze a DTI dataset with 160 images. > > I have been sucessful before the last few steps of tbss_3_postreg. > > When it tried to concatenate all *_nonlinear_hr.* images into one > > 4D image file using avwmerge, the machine reported "out of memory" > > error and the process was killed automatically. With each image > > requiring 14M mem, I caculate that I would need around 2.4 G mem, > > which is bigger than what I have. Therefore, I want to know whether > > there is any way to bypass this obstacle, e.g not using 4D storage. > > > > Any comment is welcome and appreciated! > > > > Regards, > > Deqiang > > > ------------------------------------------------------------------------ > --- > Stephen M. Smith, Professor of Biomedical Engineering > Associate Director, Oxford University FMRIB Centre > > FMRIB, JR Hospital, Headington, Oxford OX3 9DU, UK > +44 (0) 1865 222726 (fax 222717) > [log in to unmask] http://www.fmrib.ox.ac.uk/~steve > ------------------------------------------------------------------------ > --- >