Hello,
The --peakdist option should use the Euclidean distance to ensure a minimum distance between all local maxima. If you have a file where this option appears to be working incorrectly, please upload it to:
http://www.fmrib.ox.ac.uk/cgi-bin/upload.cgi
and let us know the 6-digit reference number and we will check what is happening.
Many Regards
Matthew
> Hi,
>
> Does the peakdist option in cluster use the Euclidean distance to dertemine the distance between local maxima? when I use following command:
> cluster -i data.nii.gz -t 2.58 --mm -n 10 --olmax lmax
> in the file lmax:
> cluster index Z x y z
> 65 6.38 4 -84 32
> 65 6.09 42 -24 64
> 65 5.98 2 -80 34
> ... ... ... ... .. ....
> the distance of the first two peak in is more than 10mm,
> but when I used the command: cluster -i data.nii.gz -t 2.58 --mm -n 10 --olmax lmax1 --peakdisk=10
> in the file lmax1:
> cluster index Z x y z
> 65 6.38 4 -84 32
> 65 2.57 22 2 30
> ... ... ... ... .. ....
> why did it retrun the peak: (42 -24 64) ? how does the option peakdist work? Thanks
>
> Take care
> Shugao
>
