Hi katie, I'm guessing that you have one event type that only has one
event? If so, you can do what Sebastian suggests, but you won't be able
to look at contrasts related to that condition.
doug
On 02/19/2013 03:24 PM, Katie Bettencourt wrote:
> I am having a problem with selxavg3-sess (for FS 4.5) where it is
> giving me an Ill-conditioned error that I can't trace out.
>
> I have 8 runs that I am running separately (same basic analysis for
> each run, but each run gets it's own analysis for svm purposes).
> Originally for this subject, I created an analysis and it ran fine
> for all 8 runs. I went back and changed the timewindow on the
> analysis (and only the timewindow) and now, while it runs fine for 7
> or the 8 runs, one of them gives me an ill conditioned error during
> selxavg3-sess. I double checked the paradigm file and all conditions
> are listed, and the only change between when the analysis ran fine and
> when it gave me this error was changing the timewindow. The
> mkanalysis commands I used both times are listed below.
>
> Original analysis (worked fine):
> foreach r (1 2 3 4 5 6 7 8)
> mkanalysis-sess -analysis grating_nodist_ld_run${r} -TR 2 -paradigm
> grating.dat -designtype event-related -funcstem fmc -motioncor
> -runlistfile nodist_run${r}.txt -inorm -tpexclude tpexclude.dat
> -nconditions 3 -timewindow 22 -TER 2 -noautostimdur -polyfit 2
> end
>
> new analysis (illconditioned on one run only):
> foreach r (1 2 3 4 5 6 7 8)
> mkanalysis-sess -analysis grating_nodist_ld_34_run${r} -TR 2 -paradigm
> grating.dat -designtype event-related -funcstem fmc -motioncor
> -runlistfile nodist_run${r}.txt -inorm -tpexclude tpexclude.dat
> -nconditions 3 -timewindow 34 -TER 2 -noautostimdur -polyfit 2
> end
>
> Katie
--
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
FileDrop: www.nmr.mgh.harvard.edu/facility/filedrop/index.html
Outgoing: ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/
_______________________________________________
Freesurfer mailing list
Freesurfer@nmr.mgh.harvard.edu
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 . 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.
