Hi,
I am sorry to disappoint you. I wrote another srcipt to compute the centroid in
order to clarify whats happening. The centroid computed by the script is in the
center of the cluster. However, the differences could be due to details of the
computation. I was not able to unriddle all the deta
By irregular, I mean irregularly shaped (non-concave) such that the
centroid is actually not inside the cluster. Eg, a ring would have the
centroid in the center but technically it would not be in the ring
On 4/9/14 2:48 AM, Joerg Pfannmoeller wrote:
> On Mon, 07 Apr 2014 12:02:24 -0400
> Doug
Hi Jeorg
if the cluster is non-convex, the centroid is not guaranteed to be in the
interior. Think of a C or U shape.
cheers
Bruce
On Wed, 9 Apr 2014, Joerg Pfannmoeller
wrote:
> On Mon, 07 Apr 2014 12:02:24 -0400
> Douglas N Greve wrote:
>
>
>> Is this group data? Or otherwise on fsaverage?
On Mon, 07 Apr 2014 12:02:24 -0400
Douglas N Greve wrote:
> Is this group data? Or otherwise on fsaverage? Or on the subject's
> surface?
It is on a single subject on its on anatomy (self).
> How are you determining that the centroid is outside of the
> cluster?
The coordinates are outsid
On 04/07/2014 03:20 AM, Joerg Pfannmoeller wrote:
> Hi,
>
> you are right! The Talairach ccordinates change. Unfortunately, the centroid
> coordinate of my data are outside the cluster. Do you have any suggestions
> about that?
Is this group data? Or otherwise on fsaverage? Or on the subject's
Hi,
you are right! The Talairach ccordinates change. Unfortunately, the centroid
coordinate of my data are outside the cluster. Do you have any suggestions
about that?
I also tried your version of the script. The following message appeared:
mri_surfcluster: error while loading shared librarie
I'm not sure, when I run it it results in different xyz. What version
are you using?
I've put a copy of my version (for linux) here
ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/mri_surfcluster
doug
On 04/03/2014 03:56 AM, Joerg Pfannmoeller wrote:
> Hi,
>
> I am trying to comp
Hi,
I am trying to compute centroid coordinates of maps for functional activation
obtained from fsfast with mri_surfcluster. The command is:
mri_surfcluster --in /.../sig.nii.gz --thmin 3 --thmax infinity--sign pos
--subject subjid --hemi rh --surf white --annot aparc --frame 0 --minarea 0
