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 <gr...@nmr.mgh.harvard.edu>wrote: > > 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 > gr...@nmr.mgh.harvard.edu > Phone Number: 617-724-2358 > Fax: 617-726-7422 > > Bugs: > surfer.nmr.mgh.harvard.edu/**fswiki/BugReporting<http://surfer.nmr.mgh.harvard.edu/fswiki/BugReporting> > FileDrop: > https://gate.nmr.mgh.harvard.**edu/filedrop2<https://gate.nmr.mgh.harvard.edu/filedrop2> > www.nmr.mgh.harvard.edu/**facility/filedrop/index.html<http://www.nmr.mgh.harvard.edu/facility/filedrop/index.html> > Outgoing: ftp://surfer.nmr.mgh.harvard.**edu/transfer/outgoing/flat/** > greve/ <ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/> > > > > The information in this e-mail is intended only for the person to whom it > is > addressed. If you believe this e-mail was sent to you in error and the > e-mail > contains patient information, please contact the Partners Compliance > HelpLine at > http://www.partners.org/**complianceline<http://www.partners.org/complianceline>. > If the e-mail was sent to you in error > but does not contain patient information, please contact the sender and > properly > dispose of the e-mail. > > -- Best regards, Amirhossein Manzouri
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