[Freesurfer] glmfit error / group analysis

Hello, I am trying to test for the effect of different variables on cortical thickness. The variables (with type) are: index (continuous). Gender(factor), Age(continuous),  Years of education (continuous),  Depression (factor),  Vascular comorbidity (factor), and MMSE (continuous). Later, I ne

[Freesurfer] matrix is ill-conditioned or badly scaled, condno = 1e+08

Hello, I am trying to use the glm_fit to correlate a continuous variable (index) with cortical thickness, when controlling for age, education, and cognition (MMSE) (all continuous variables). However, I get the following error: ERROR: matrix is ill-conditioned

[Freesurfer] Multiple Comparisons Correction thresh error

Hello, I would like to correct my glm_fit results for multiple comparisons. I am using the following commands, similar to the one in the group analysis tutorial: mri_glmfit-sim  --glmdir lh.index.glmdir  --cache 1.3 abs  --cwp 0.05  --2spacesmri_glmfit-sim  --glmdir lh.index.glmdir  --cache 2.0

Re: [Freesurfer] Multiple Comparisons Correction thresh error

Hello, I forgot to mention in my previous email that the system locale is in Swedish. Can this be the reason? Regards,Teodora On Thursday, April 6, 2017, 1:07:56 PM GMT+2, teodora petrova wrote:Hello, I would like to correct my glm_fit results for multiple comparisons. I am using the

Re: [Freesurfer] Multiple Comparisons Correction thresh error

rting the "1.3" into "1,3" and then getting confused. I'm not sure how to fix it, but I think it has to do with the LOCAL setting. On 4/6/17 5:07 AM, teodora petrova wrote: Hello, I would like to correct my glm_fit results for multiple comparisons.  I am using