Thanks Doug, Would you please provide me the MATLAB code and instruction! BR
On Tue, Oct 29, 2013 at 3:25 PM, Douglas N Greve greve@nmr.mgh.harvard.eduwrote:
We don't have a way to do a power analysis directly from QDEC. I have some matlab code that does it for univariate analysis.
In the QDEC output folder, you will see a glm folder. In that there will be folders for each contrast. In the contrast folder, you will see an F.mgh file which will be the F-values. You can convert this to a t = sign(gamma.mgh)*sqrt(F)
doug
On 10/28/2013 07:27 AM, amirhossein manzouri wrote:
Hi Would you please let me know if it is possible to calculate the power for a group comparison in cortical thickness? Also, a referee is requesting F-values and T map , are they generated by q-dec? That would be great if I can get an answer in more detail since I have seen the post in FAQ, just need more information in detail regarding calculating the power ! -- Best regards, Amirhossein Manzouri
-- Douglas N. Greve, Ph.D. MGH-NMR Center greve@nmr.mgh.harvard.edu Phone Number: 617-724-2358 Fax: 617-726-7422
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