HI, Custom is for historical reasons - not used generally now. PPheight is best left in, as it may be used by some programs - it should be the peak-peak height of each regressor. Cheers. On 14 Aug 2009, at 21:34, Miguel Burgaleta wrote: > Hello, > > I am trying to set up the design.mat file in order to run randomise. > However, I have 2 > questions about the meaning of some of the lines in the file and I > was unable to find an > answer by browsing your archives. > > 1. What does the /Custom line means? > 2. Is it true that I can just remove the /PPheight line? > > Thanks in advance for your time! > > Cheers, > Miguel > --------------------------------------------------------------------------- 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 ---------------------------------------------------------------------------