Hi Cornelius,
I'd expect the same and can't replicate your problem, what do you get
from
wc inputfilename.txt
Is it the case that the input file name was generated by concatenating
the individual t**.txt files? If so, yes, there can be up to two
additional regressors (77 in your case), the first one being the
rank-1 time course per component and the second one the full model fit
(provided you did specify a design.mat file in the GUI). These are the
two regressors which are actually plotted in the web report.
hth
Christian
On 6 Aug 2008, at 21:05, Cornelius Werner wrote:
> Dear FSL experts,
>
> with the help of Christian Beckmann, I successfully ran fsl_glm on a
> MELODIC mixing matrix. The design matrix contained 6 regressors, the
> contrasts were defined such that each of the regressors was set to 1
> while all others were 0, respectively. Beforehand, MELODIC had
> identified 75 components in the data.
>
> Therefore, using the --out_p option, I expected a set of 6x75
> p-values. What I got, though, was a file with 6x77 values. As I
> skipped some lessons in statistics in school, I am really confused
> about this - where do the additional values come from? And how can I
> assign the p-values to the components?
>
> In a similar vein, I am interested in how a combination of the
> regressors would fit to the data. Therefore, I also ran the --out_f
> option. Again, with 77 values as output. Apart from having the same
> problem as above in assigning the f-values to the components, how do I
> determine the respective degrees of freedom (which I need to check for
> significance)?
>
> Any help is greatly appreciated - thanks in advance!
> Cornelius
>
> --
> Dr. med. Cornelius J. Werner
> GnuPG Public Key ID: 0x9D64BC2C
>
> Institute of Neuroscience and Biophysics - INB3
> Research Centre Juelich
> 52425 Juelich
> Germany
>
> Department of Psychiatry and Psychotherapy
> RWTH Aachen University
> Pauwelsstr. 30
> 52074 Aachen
> Germany
>
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