Perhaps I am missing something here, but you've only got two, and not four,
factors Best wishes Paul Fletcher
On Dec 21 2005, Shahryar Rafi-Tari wrote:
>Dear SPMers,
>
>I am ananlyzing a 2 x 2 factorial analysis:
>
>Pretreatment with Drug 1 =================> Posttreatment with Drug 1
>Pretreatmetn with Drug 2 =================> Posttreatment with Drug 2
>
>I selected full factorial and entered the following Levels under factors
>and then under cells (then selected SPECT images for each cell):
>
>Pretreament with Drug 1 has level [1 1]
>Posttreatment with Drug 1 has level [1 2]
>Pretreatmetn with Drug 2 has level [2 1]
>Posttreatment with Drug 2 has level [2 2]
>
>As I mentioned, I entered these levels first for Factors (4 factors) and
>then for cells (4 cells). However, I am getting the following error
>message:
>
>
>Error Message:
>--------------------------
>Running "Factorial design specification"
>4-way full-factoral designs are not supported
>4-way full-factoral designs are not supported
>??? One or more output arguments not assigned during call
>to 'C:\SPM\SPM5_USE_THIS\spm_set_factorial_design.m
>(spm_set_factorial_design)'.
>
>Error in ==> spm_config_factorial_design>run_stats at 1034
> [I,P,H,Hnames] = spm_set_factorial_design (job);
>
>Error in ==> spm_jobman>run_struct1 at 1379
> feval(prog,val);
>
>Error in ==> spm_jobman>run_struct1 at 1387
> run_struct1(c.val{i});
>
>Error in ==> spm_jobman>run_struct1 at 1387
> run_struct1(c.val{i});
>
>Error in ==> spm_jobman>run_struct at 1346
>run_struct1(c);
>
>??? Error while evaluating uicontrol Callback.
>
>
>
>Why the error message tells me it is 4 way full factorial? What am I
>doing wrong?
>
>I appreciate your comments.
>
>regards,
>Shary
>
>
>
>Shahryar Rafi-Tari, M.Sc.
>Database Consultant / Imaging Analyst
>ADNI Imaging Project Coordinator at Sunnybrook
>
>2075 Bayview Avenue
>Sunnybrook & Women's College Health Sciences Centre
>Linda C Campbell Cognitive Neurology Research Unit
>Room B630
>Toronto, Ontario, Canada M4N 3M5
>
>E-mail: [log in to unmask]
> Tel: 416-480-6100 ext. 3281
>
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