Thank you.

Is the following setup looks correct?

We have 1 group of subjects, half came at TP1 & TP2, half came at TP1 & TP3.

And we would like to do a Two Stage longitudinal anaylsis later, is it correct if we 

put in the following way?

GroupDescriptorFile 1
Title G2V2
Class Male
Class Female
Variables Age Minutes 

Input TP1_sub1.long.Template1  Female 26     0

Input TP2_sub1.long.Template1  Female 26  1800

Input TP1_sub2.long.Template2  Male  20     0

Input TP3_sub2.long.Template2  Male 20  1000



 Thank you

Jahanvi 

> 1) You don't include sex as a covariate. Include it as a class (ie, 
> Class Male and Class Female rather than Class Main).
> 2) You need to include Minutes in your null hypothesis.
> 3) Include minutes as a covariate as you have done, then create the 
> proper contrast matrix. The contrast matrix will depend on the classes 
> you set up
>
> You can also see
> https://surfer.nmr.mgh.harvard.edu/fswiki/FsgdExamples



On 6/1/16 9:03 AM, jahanvi patel wrote:
> Dear list,
>
> We have a question about the set up of the FSGD file.
>
>
>
> We have 1 group,  2 continued covariates (age & mintues), 1 
> discontinued covariate (sex)
>
>
> GroupDescriptorFile 1
> Title G1V3
> Class Main
> Variables Age Sex Minutes
> Input subject1 Main 30 0  1200
> Input subject2 Main 40 1  180
>
>
> My question is
>
>
> 1) How to enter the column "sex" in FSGD.
> Can I input 1 for Male and 0 for Female?
>
> 2) What would be the Main Contrast (regress out effect of sex & age)?
>
> (Null Hypothesis: the intercept/offset is different than 0 after 
> regressing out the effects of age and sex)
>
> 3) If I want to correlate the continued variable (minutes) with the 
> Thickness, is it correct in this way ? :
>
> 0 0 0 1
>
>
>
> Thanks so much
>
>
> Jahanvi
>
>
>
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