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Hi - that sounds fine - at this stage TFCE is 'better' than dumb cluster-based - but it is a lot slower. Cheers. On 15 Apr 2008, at 17:00, Deryk Beal wrote: > Hello Everyone > > I am interested in comparing results from an independent t-test of a > patient group and a control group using both TFCE & Cluster-based > thresholding. I ran randomise once using the -T command and 5000 > permutations. The permutations, as expected, took about 1 minute 45 > seconds each on my single core 3.0GHz computer for a total of about > 7 days processing time. I then reran randomise using the -c option > and a threshold of 3. This time each permutation only took 15 > seconds per - for total of 5-6 hours running time. In talking with > colleagues this processing time seems awfully short. Is it okay to > re-run randomise like this in the same stats folder, with different > output names of course, or is something happening that I'm not > picking up on? > > Cheers, > > Deryk > > > -- > Deryk Beal, M.HSc., S-LP(C), Reg. CASLPO > Speech-Language Pathologist > Doctoral Candidate > 416-946-8635 > [log in to unmask] or [log in to unmask] > ************************************************************************* > This email may contain confidential and/or privileged information > for the > sole use of the intended recipient. Any review or distribution by > others is > strictly prohibited. If you have received this email in error, please > contact the sender and delete all copies. Opinions, conclusions or > other > information expressed or contained in this email are not given or > endorsed > by the sender unless otherwise affirmed independently by the sender. --------------------------------------------------------------------------- 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 ---------------------------------------------------------------------------