> Date: Fri, 15 Nov 2013 00:25:28 +0000
> From:
[log in to unmask]> Subject: Re: [FSL] TBSS and Glm
> To:
[log in to unmask]>
> Hi,
>
> If you are using randomise then you can take a text file and use Text2Vest to turn it into the accepted matrix format for FSL.
>
> All the best,
> Mark
>
>
>
> On 13 Nov 2013, at 09:21, Domenico Aquino <
[log in to unmask]> wrote:
>
> > Dear all,
> >
> > I'm conducting a TBSS analysis, comparing three groups of subjects (2 patient groups and 1 healthy controls group).
> > I've done all the steps required for the TBSS analysis and now I want to compare them using an ANOVA design.
> > I thought to set the design matrix with 3 columns, 1 for each group, a column of all ones to account for mean signal differences and N (where N>=3) columns of covariates.
> >
> > I want to use a single f-test and a contrast like this:
> >
> > -2 1 1 0 0 ¡K
> > -1 0 1 0 0 ¡K
> > -1 1 0 0 0 ¡K
> > 0 -1 1 0 0 ¡K
> >
> > Now the problem is that I've to create the design matrix but, as I understood, the only way is to use the GUI command Glm.
> > The subjects are 60 (20 for each group), so I have to construct manually a matrix with at least 60*6 = 360 values that should be copied manually.
> >
> > I know the existence of a command "design_ttest2" to prepare the design matrix for a t-test analysis.
> > I would like to know, because I wasn't able to find it, if exist a command (not GUI) to create my desired design matrix starting from, for example, a text file.
> >
> > Thank you all
> >
> > Domenico
