Okay then we’re having an issue somewhere along the line.  Using the cache.th40.neg.y.ocn.dat file to make a csv file, we pulled out the individual values and compared across groups using a linear regression in R and didn’t find a group difference for each cluster.  Any thoughts as to why that might be?  This is assuming of course that the file goes top to bottom in ascending order, and that the columns are each cluster from left to right.

- Taylor

yes, that is correct

Hi all,

I’m trying to perform a group analysis according to the tutorial on this page: MailScanner has detected a possible fraud attempt from "na01.safelinks.protection.outlook.com" claiming to be https://surfer.nmr.mgh.harvard.edu/fswiki/FsTutorial/GroupAnalysis

For my own analysis, I have 4 total groups, and I’m trying to do a contrast between two of those groups.  

My matrix file is formatted ‘0 1 -1 0’, since I’m trying to contrast the 2nd and 3rd groups.  

My fsgd file is formatted as the following:

GroupDescriptorFile 1

Title PYSCan

Class 1

Class 2

Class 3

Class 4

Input s70032 2

Input s70038 1

…

Wanted to verify that this is correct since there doesn’t appear to be a group difference when comparing the clusters against the rest of the data.

Any help is very appreciated!

Sincerely,

B. Taylor Hilton

Lab Data Coordinator

University of Pittsburgh

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