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We have set our up our additional confound EV text file with one value per TR as suggested and selected it. However, when we go to the full model setup and select our original EV which is also one entry per volume and click view design, we get the following error: Problem with processing the model: terminate called after throwing an instance of 'NEWMAT::IncompatibleDimensionsException. I have doubled checked and both text files have the same number of entries. Any idea what could be causing this error? Thanks, Crystal On 4/9/09 1:34 AM, "Steve Smith" <[log in to unmask]> wrote: > Hi, > > This is more a conceptual question rather than software, so I would > see the recent literature on physiological modelling. > However, once you have turned the repiration measurements into one > representative value pre TR, you just put those values in a text file > with one line per TR. > > Cheers. > > > On 7 Apr 2009, at 21:17, Crystal Franklin wrote: > >> We are wanting to add respiration rate as an additional confound EV >> to our >> feat analysis. What needs to go into the one column text file you >> have to >> select? >> >> Thanks, >> Crystal >> > > > --------------------------------------------------------------------------- > 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 > ---------------------------------------------------------------------------