Can you send me the Xtmp.mat file from the outputdirectory?
doug
On 02/28/2013 07:34 AM, Katie Bettencourt wrote:
Still looking for an answer why my analysis gives me an ill conditioned error. I have run this analysis fine before, with a timewindow of 22, but when I tried to change the time window to 34, selxavg3-sess gives me an ill conditioned error on some of the runs (each run is being analyzed separately), but not all of them. All the runs are identical except for the order the conditions appear in, but each condition appears an equal number of times and for an equal duration in each run. There is nothing specific about the runs that fail or the subjects that they fail in (for some subjects all 8 runs work fine, others lost between 1-3 runs to this error). I'm doing svm with this data so I need all conditions to be analyzed correctly.
Any help?
Katie
On Mon, Feb 25, 2013 at 10:23 AM, Katie Bettencourt <kcb@wjh.harvard.edu <mailto:kcb@wjh.harvard.edu>> wrote:
No, each condition has at least 3 instances of it in each run.
The runs are all set up exactly the same, just the order changes,
so there is nothing different about the runs that work than the
runs that fail, and again, all of these runs worked fine with the
exact same paradigm files and set up, but only the timewindow at
22 instead of 34.
Katie
On Mon, Feb 25, 2013 at 10:21 AM, Douglas N Grevegreve@nmr.mgh.harvard.edu <mailto:greve@nmr.mgh.harvard.edu> <http://surfer.nmr.mgh.harvard.edu/fswiki/BugReporting><greve@nmr.mgh.harvard.edu <mailto:greve@nmr.mgh.harvard.edu>> wrote:
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
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