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Hello Matt,

I would like to ask 3 follow up questions on my previous question please:

1- How is 'the average distance to the target' calculated for each voxel?
2- Could I get the '#samples' and 'the average distance to the target values' separately rather than their product?
3- If I want to do some sort of group averaging of my results wouldn't it make more sense if I don't use --pd option for each individual object. My sense is that the average distance to the target scales with the head size and maybe combining measures of the number of samples would make more sense. What would you recommend?

Sincerely,
Nas



--- On Thu, 7/30/09, Matt Glasser <[log in to unmask]> wrote:

From: Matt Glasser <[log in to unmask]>
Subject: Re: [FSL] Connectivity-Based Seed Classification: >5000 results?
To: [log in to unmask]
Date: Thursday, July 30, 2009, 5:33 PM

Well, then the numbers in any voxel are #samples that reached the target X average distance to the target, which is why they are bigger than 5000.  

 

Peace,

 

Matt.

 


From: FSL - FMRIB's Software Library [mailto:[log in to unmask]] On Behalf Of Nasim
Sent: Thursday, July 30, 2009 4:03 PM
To: [log in to unmask]
Subject: Re: [FSL] Connectivity-Based Seed Classification: >5000 results?

 

Hi Matt,

 

Thanks for your note. Yes, I did use the --pd option. 

 

Thanks again,

Nas

--- On Thu, 7/30/09, Matt Glasser <[log in to unmask]> wrote:


From: Matt Glasser <[log in to unmask]>
Subject: Re: [FSL] Connectivity-Based Seed Classification: >5000 results?
To: [log in to unmask]
Date: Thursday, July 30, 2009, 1:44 PM

Did you use distance correction (the --pd option)?

 

Peace,

 

Matt.

 


From: FSL - FMRIB's Software Library [mailto:[log in to unmask]] On Behalf Of Nasim
Sent: Thursday, July 30, 2009 12:35 PM
To: [log in to unmask]
Subject: [FSL] Connectivity-Based Seed Classification: >5000 results?

 

Hi all,

 

I'm output f my connectivity-based seed classification results, there are voxels for which I have values above 5000 (Number of Samples in PROBTRCKX). How does this happen and what does it mean?

 

Thanks for your help,

Nas