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Thanks very much Dr.Steve ________________________________ From: FSL - FMRIB's Software Library on behalf of Stephen Smith Sent: Fri 10/9/2009 2:24 AM To: [log in to unmask] Subject: Re: [FSL] Re : [FSL] Contrast matrix for one way ANOVA-VBM See Smith and Nichols, NeuroImage 2009 for TFCE Cheers -------------------- Stephen M. Smith, Professor of Biomedical Engineering Associate Director, Oxford University FMRIB Centre FMRIB, JR Hospital, Headington, Oxford. OX3 9 DU, UK +44 (0) 1865 222726 (fax 222717) [log in to unmask] http://www.fmrib.ox.ac.uk/~steve ---------------------- On 8 Oct 2009, at 18:50, "Rajagopalan, Venkateswaran" <[log in to unmask]> wrote: > Hi Gwenaelle, > > Thanks > > I was more talking about the n of B, C and E compared with D. > My B group has bigger sample size when compared to all other groups. > Control (n=9), B(n=25), C (n=13), E (n=14) & D (n=20). > > Thanks i will look at the documentation pages. I tried to find more > information on TFCE but TFCE research page don' have any article > listings, where can i find more info on TFCE. > > Thanks > > venkateswaran > > > ________________________________ > > From: FSL - FMRIB's Software Library on behalf of Gwenaëlle DOUAUD > Sent: Thu 10/8/2009 1:12 PM > To: [log in to unmask] > Subject: Re: [FSL] Re : [FSL] Contrast matrix for one way ANOVA-VBM > > > > Hi, > >> You are right that my sample size for control is less than >> the sample size for D and other groups. > > I was more talking about the n of B, C and E compared with D. > >> I looked at the uncorrected p values i could see some >> significant differences between control and other patient >> groups, > > If they are uncorrected, they are *not* significant. But they might > indicate that it would be if you use a more sensitive way of > correcting for multiple comparisons... > >> i also looked unthresholded corrected p-values >> (_tstat file extension am i correct) > > Hmmm, no. Please have a look at the randomise manual (www.fmrib.ox.ac.uk/fsl/randomise > ). Corrected p-vals are *_corrp_*, uncorrected p-vals are *_p_*. > >> I would like >> to try FDR and TFCE correction can you please tell me how >> can i run these stats on this data. > > Again, please have a look at the end of the FSL-VBM manual, the > randomise manual and the fdr manual (www.fmrib.ox.ac.uk/fsl/ > randomise). > > Cheers, > Gwenaelle > > > > > > > > =================================== > > P Please consider the environment before printing this e-mail > > Cleveland Clinic is ranked one of the top hospitals > in America by U.S. News & World Report (2008). > Visit us online at http://www.clevelandclinic.org <http://www.clevelandclinic.org/> for > a complete listing of our services, staff and > locations. > > > Confidentiality Note: This message is intended for use > only by the individual or entity to which it is addressed > and may contain information that is privileged, > confidential, and exempt from disclosure under applicable > law. If the reader of this message is not the intended > recipient or the employee or agent responsible for > delivering the message to the intended recipient, you are > hereby notified that any dissemination, distribution or > copying of this communication is strictly prohibited. If > you have received this communication in error, please > contact the sender immediately and destroy the material in > its entirety, whether electronic or hard copy. Thank you. > =================================== P Please consider the environment before printing this e-mail Cleveland Clinic is ranked one of the top hospitals in America by U.S. News & World Report (2008). Visit us online at http://www.clevelandclinic.org for a complete listing of our services, staff and locations. Confidentiality Note: This message is intended for use only by the individual or entity to which it is addressed and may contain information that is privileged, confidential, and exempt from disclosure under applicable law. If the reader of this message is not the intended recipient or the employee or agent responsible for delivering the message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please contact the sender immediately and destroy the material in its entirety, whether electronic or hard copy. Thank you.