See Tom Nichols' recent answer on this. Cheers. On 28 Mar 2009, at 20:30, Gonzalo Rojas wrote: > Hi: > > How can I do a two-sample t-test between a FDG-PET image of a > patient and a group of FDG-PET image of controls using FSL ?... > > Sincerely... > > > > Gonzalo Rojas Costa > Department of Radiology > Santa Maria Clinic > Avda. Santa Marķa 0500, Providencia, Santiago, Chile. > Tel: 56-2-4613074 > Cel: 56-9-97771785 > www.csm.cl > --------------------------------------------------------------------------- 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 ---------------------------------------------------------------------------