[Freesurfer] variable

2012-11-18 Thread xiangbo_2010
Dear experts: I want to ask the question: the gender (1;2) can be as a continuous variable? I hope that have experts to help me. Thanks! Bo Xiang ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.e

Re: [Freesurfer] variable

2012-11-18 Thread Bruce Fischl
sorry, not sure I understand. Why would you want it to be continuous? On Sun, 18 Nov 2012, xiangbo_2010 wrote: Dear experts:    I want to ask the question: the gender (1;2) can be as a continuous variable? I hope that have experts to help me. Thanks!       Bo Xiang ___

Re: [Freesurfer] variable

2012-11-18 Thread xiangbo_2010
if the gender (1;2) can be as a continuous variable ,can reduce the trouble about the set of contrast,thanks! Bo Xiang At 2012-11-18 22:48:36,"Bruce Fischl" wrote: >sorry, not sure I understand. Why would you want it to be continuous? >On >Sun, 18 Nov 2012, xiangbo_2010 wrote: > >> De

[Freesurfer] Tksurfer display issue

2012-11-18 Thread Maleki, Nasim
Hi all, This issue was posted by someone else in October (please see below). I have the EXACT same problem. Does anyone have any ideas how fix this? Thanks, Nasim === Hi, everyone. The tksurfer can't initial a window in iOS 10.7.5. Has anyone me

Re: [Freesurfer] contrast matrix

2012-11-18 Thread Douglas Greve
Hi Bo, you can think of the Ftest as a logical 'OR' between the t-test contrasts indicated in each row. Each row is a difference of differences, so 1. (A-B)om - (A-B)pm --> Does the difference between A and B differ between groups O and P for Males? 2. (A-B)om - (A-B)qm 3. (A-C)om - (A-C)pm

Re: [Freesurfer] variable

2012-11-18 Thread Douglas Greve
Hi Bo, you don't want to do it this way. This says that you expect the females to have twice the thickness of males which is probably not what you want. Use a discrete variable here, not a continuous one doug On 11/18/12 9:53 AM, xiangbo_2010 wrote: if the gender (1;2) can be as a continuous

Re: [Freesurfer] contrast matrix

2012-11-18 Thread Yizhou Ma
Hi Doug, Thanks for replying. Yet I have a question on this matrix. From what I see, each row corresponds to one contrast, which has one df. Thus why are we having 8 rows while the interaction has a df of 4? Thanks, Cherry On Sun, Nov 18, 2012 at 6:23 PM, Douglas Greve wrote: > > Hi Bo, you can

[Freesurfer] the positions of white/pial surfaces and the brain.mgz

2012-11-18 Thread Longchuan Li
Hi, FreeSurfer experts I have a question regarding coregistering white and pial surfaces with the brain.mgz and would appreciate your help on this. I am working on non-human primates and noticed that my white and pial surfaces do not have identical positions as brain.mgz. For example, when I u