Stella,
If you took the files from one analysis and ran them again in another
directory, unless you erased everything generated or touched by SPM, then
any previous results could still affect the new results. If you begin with
identical DICOM files in the two different directories and run one with JVM
and one without, then you'll end up with a JVM/NOJVM comparison. Otherwise,
maybe not.
Kathy Pearson
UAB Psychology
________________________________________
From: SPM (Statistical Parametric Mapping) [mailto:[log in to unmask]] On
Behalf Of stella gialla
Sent: Friday, September 05, 2008 12:22 PM
To: [log in to unmask]
Subject: Re: [SPM] virtual machine
Hi
I created two different directories (with different names) but the images
were the same.
S
--- Ven 5/9/08, Kathy Pearson <[log in to unmask]> ha scritto:
Da: Kathy Pearson <[log in to unmask]>
Oggetto: Re: [SPM] virtual machine
A: [log in to unmask]
Data: Venerd́ 5 settembre 2008, 16:26
Stella,
Did you rerun in the same directory? If so, then to be sure that the
difference is related only to JVM, you may want to try something like this:
(1) makedir jvm
put raw input here (DICOM files, for example)
in this directory, run SPM analysis with JVM
(2) mkdir nojvm
put raw input here (DICOM files, for example)
in this directory, run SPM analysis without JVM
Separate directories may be needed to test your suggestion that the results
will be different. SPM works on files in place, and sometimes the output
can be influenced by previously created files of the same name.
Kathy Pearson
UAB Psychology
________________________________________
From: SPM (Statistical Parametric Mapping) [mailto:[log in to unmask]] On
Behalf Of stella gialla
Sent: Friday, September 05, 2008 7:57 AM
To: [log in to unmask]
Subject: [SPM] virtual machine
Dear SPMers
I'm a beginner in SPM so I don't know everything about it but this
morning I
found something very interesting for me.
I usually run matlab (I'm using 7.0.4.365 R14) WITHOUT the virtual machine
but I repeated the whole pre-processing WITH the virtual machine.
Well, I found that the number of voxels for the clusters individuated is
different (in the first case, it is less than the second case).
so my question is: can I use matlab WITHOUT the virtual machine? are my
results reliable?
Thank you
Stella
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