erence contrast', which has -1 and +1 at the appropriate
columns, and zeros otherwise.
Best regards,
Kersten
> Thanks!
>
> Best regards,
> Guodong
>
> >
> >
> > ----------
> >
> > Date: Tue, 5 Nov 2019 09:48:06 +000
00
> From: "Diers, Kersten /DZNE"
> Subject: Re: [Freesurfer] LME model contrast matrix (Diers, Kersten
> /DZNE)
> To: "freesurfer@nmr.mgh.harvard.edu"
> Message-ID: <1572947286.4016.34.ca...@dzne.de>
> Content-Type: text/plain; charset="utf-8&qu
External Email - Use Caution
Hello Guodong,
consider as an analogy a two-sample t-test, where we simply compare two
groups A and B:
If formulated as a regression problem, a commonly used model matrix for
this test (but others are possible, too) will consist of two columns,
one be
External Email - Use Caution
Dear Kersten:
The β1 and β2 in the tutorial model is the regressing coefficients for all the
subjects not only for the control subjects because all the intercept are one. I
wonder why the reference group is control group in this case?
Thanks in adva
