if i come up with the code for the newey white standard error, where in selxavg3-sess would i need to plug that in? caspar
2012/6/15 Douglas N Greve <gr...@nmr.mgh.harvard.edu> > I don't know anything about it. Looks interesting. > doug > > > On 06/15/2012 02:14 PM, Caspar M. Schwiedrzik wrote: > >> Hi Doug, >> if I filter, an alternative might be the Newey-West estimator ( >> http://en.wikipedia.org/wiki/**Newey-West_estimator<http://en.wikipedia.org/wiki/Newey-West_estimator>), >> I guess? >> Caspar >> >> >> 2012/6/15 Douglas N Greve <gr...@nmr.mgh.harvard.edu <mailto: >> gr...@nmr.mgh.harvard.**edu <gr...@nmr.mgh.harvard.edu>>> >> >> >> Hi Caspar, it does not make sense to low pass filter and prewhiten. >> Unfortunately, I don't have the precoloring implemented in FSFAST. >> doug >> >> On 06/15/2012 01:36 PM, Caspar M. Schwiedrzik wrote: >> > Hi! >> > I am processing a resting state data set, which I would like to low >> > pass filter to get rid of some artifacts. The sample will be very >> > small, so I won't run a RFX GLM, but an FFX GLM and/or single >> subject >> > analyses. >> > Since the low pass filter introduces high autocorrelations, it does >> > not make sense to whiten the data before the GLM. >> > However, in order not to violate the assumptions of the OLS, I would >> > like to use the precoloring approach described in Worsley & Friston >> > 1995. Is that by any chance implemented in FSFAST, and if not, where >> > would be the right place to add it? >> > Thanks in advance, >> > Caspar >> > >> > >> > ______________________________**_________________ >> > Freesurfer mailing list >> > Freesurfer@nmr.mgh.harvard.edu >> <mailto:freesur...@nmr.mgh.**harvard.edu<Freesurfer@nmr.mgh.harvard.edu> >> > >> >> > >> https://mail.nmr.mgh.harvard.**edu/mailman/listinfo/**freesurfer<https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer> >> >> -- >> Douglas N. Greve, Ph.D. >> MGH-NMR Center >> gr...@nmr.mgh.harvard.edu >> <mailto:gr...@nmr.mgh.harvard.**edu<gr...@nmr.mgh.harvard.edu> >> > >> Phone Number: 617-724-2358 <tel:617-724-2358> >> Fax: 617-726-7422 <tel:617-726-7422> >> >> Bugs: >> surfer.nmr.mgh.harvard.edu/**fswiki/BugReporting<http://surfer.nmr.mgh.harvard.edu/fswiki/BugReporting> >> >> <http://surfer.nmr.mgh.**harvard.edu/fswiki/**BugReporting<http://surfer.nmr.mgh.harvard.edu/fswiki/BugReporting> >> > >> FileDrop: >> www.nmr.mgh.harvard.edu/**facility/filedrop/index.html<http://www.nmr.mgh.harvard.edu/facility/filedrop/index.html> >> >> <http://www.nmr.mgh.harvard.**edu/facility/filedrop/index.**html<http://www.nmr.mgh.harvard.edu/facility/filedrop/index.html> >> > >> >> ______________________________**_________________ >> Freesurfer mailing list >> Freesurfer@nmr.mgh.harvard.edu <mailto:freesur...@nmr.mgh.** >> harvard.edu <Freesurfer@nmr.mgh.harvard.edu>> >> >> >> https://mail.nmr.mgh.harvard.**edu/mailman/listinfo/**freesurfer<https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer> >> >> >> 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. >> >> >> > -- > 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: > www.nmr.mgh.harvard.edu/**facility/filedrop/index.html<http://www.nmr.mgh.harvard.edu/facility/filedrop/index.html> > >
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