Thanks a lot!
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From: FSL - FMRIB's Software Library [[log in to unmask]] On Behalf Of Stephen Smith [[log in to unmask]]
Sent: 22 July 2013 14:23
To: [log in to unmask]
Subject: Re: [FSL] FSLNets colour coding and r2z transformation
Hi
On 22 Jul 2013, at 11:57, Lückmann, Helen (Stud. FPN) <[log in to unmask]<mailto:[log in to unmask]>> wrote:
Dear experts,
Having checked the script and output of FSLNets, I have two remaining questions.
1) After r2z transformation, do the values in the matrices correspond to z-values as in standardised z-scores (with a z-value of 1.645 corresponding to p = 0.05 one-sided)? If not, how can I interpret their significance?
yes
2) How do the colours in the hierarchy-figure correspond to the strength of correlation (I'd like to add this information to my figures)? It seems that the scaling is relative to the maximum z-scores, but I could not figure out the exact algorithm.
it's the default matlab colourmap - click on the Matlab colourbar button to see it
Steve.
Thanks for your help!
Best,
Helen
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Stephen M. Smith, Professor of Biomedical Engineering
Associate Director, Oxford University FMRIB Centre
FMRIB, JR Hospital, Headington, Oxford OX3 9DU, UK
+44 (0) 1865 222726 (fax 222717)
[log in to unmask]<mailto:[log in to unmask]> http://www.fmrib.ox.ac.uk/~steve
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