Hi,
Do you get an error message from the glm_gui?
If you do get .con and .mat files produced then I suspect that everything is fine, but feel free to send these files.
All the best,
Mark
On 13 Dec 2012, at 12:28, Angela Favaro <[log in to unmask]> wrote:
> Thank you Mark!
>
> The error message appears when I save the matrix with glm_gui. However the
> output files are saved (except the the design image), randomise run anyway
> and everything seems to work. May I send you the files (*.con *.mat)
> produced by glm_gui?
> I really do not understand whether there is something wrong
>
> Best wishes
>
> Angela
>
>> Dear Angela,
>>
>> That design matrix looks fine. Whether you split the covariates into
>> separate EVs for each group or not is a question of what you are trying to
>> test and has been covered in quite a number of emails on the list and also
>> in Jeanette Mumford's great webpages on the subject. However, it is
>> perfectly reasonable to do exactly what you've done.
>>
>> I do not know why you are getting the error and we need to see the exact
>> command line from randomise before we can help further.
>>
>> All the best,
>> Mark
>>
>>
>>
>>
>> On 10 Dec 2012, at 14:20, Angela Favaro <[log in to unmask]> wrote:
>>
>>> Dear FSL experts,
>>> I am getting crazy with a matrix I have prepared with glm_gui to be used
>>> with TBSS (41 patients and 18 controls).
>>>
>>> It is a simple matrix with two groups and two covariates of no interest.
>>> Contrasts: 1 -1 0 0 and -1 1 0 0
>>>
>>> EVs:
>>>
>>> group EV1(patients) EV2 (controls) age (dem) lat
>>> (demeaned)
>>> 1 1 0 13.9
>>> -1.64
>>> 1 1 0 -12.5
>>> -1.64
>>> 1 1 0 12.9
>>> 0.36
>>> 1 1 0 3.34
>>> 0.36
>>> 2 0 1 24.4
>>> 0.36
>>> 2 0 1 20.8
>>> 0.36
>>> 2 0 1 -1.7
>>> 0.36
>>>
>>> age and lateralization were demeaned across groups and put in one
>>> column20 since I am not interested in correlations
>>> However I have the same problem splitting the age and lat EVs in two
>>> I have used similar matrices in other studies without problems, but now
>>> the software says:
>>>
>>> Problem with processing the model: child killed: segmentation violation
>>>
>>> What am I doing wrong?
>>> Thank you!
>>>
>>> Angela
>>>
>>
>>
>
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