Dear Freesurfers, I am trying to run a GLM analysis with 3 groups (1)long disease duration MS, 2)short disease duration MS, 3)healthy controls) and 1 variable (age).
According to the formula provided on freewiki: N classes (N of variables + 1), is this contrast matrix correct? 1 -1 0 0 0 0 1 0 -1 0 0 0 thank you, Valeria ________________________________ From: Barletta, Valeria Sent: Friday, December 7, 2018 2:23:10 PM To: freesurfer@nmr.mgh.harvard.edu Subject: glm analysis Dear Freesurfers, I am trying to run a GLM analysis with 3 groups (1)long disease duration MS, 2)short disease duration MS, 3)healthy controls) and 1 variable (age). According to the formula provided on freewiki: N classes (N of variables + 1), is this contrast matrix correct? 1 -1 0 0 0 0 1 0 -1 0 0 0 thank you, Valeria
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