AFNI Message Board

Dear AFNI users-

We are very pleased to announce that the new AFNI Message Board framework is up! Please join us at:

https://discuss.afni.nimh.nih.gov

Existing user accounts have been migrated, so returning users can login by requesting a password reset. New users can create accounts, as well, through a standard account creation process. Please note that these setup emails might initially go to spam folders (esp. for NIH users!), so please check those locations in the beginning.

The current Message Board discussion threads have been migrated to the new framework. The current Message Board will remain visible, but read-only, for a little while.

Sincerely, AFNI HQ

History of AFNI updates  

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January 13, 2009 11:32AM
> As you can see the outputs for the z data match the input exactly?

That is NOT true. I just tried the following to convert the z-score to r:

3dcalc -a Grp_t_fa_LMFG_312727+tlrc'[0]' -expr '(exp(2*a)-1)/(exp(2*a)+1)' -prefix test

and the values in test+tlrc are NOT exactly the same as Grp_t_fa_LMFG_312727+tlrc'[0]'. They are indeed vary close simply because all the values in Grp_t_fa_LMFG_312727+tlrc'[0]' fall into interval (-0.392432, 0.482834), and the transformation does not change much in that range, but again they are not exactly the same.
Subject Author Posted

reporting the r for functional connectivity

Student Servator January 08, 2009 06:16PM

Re: reporting the r for functional connectivity

Gang Chen January 09, 2009 01:09PM

Re: reporting the r for functional connectivity

Student Servator January 09, 2009 05:32PM

Re: reporting the r for functional connectivity

Gang Chen January 09, 2009 05:46PM

Re: reporting the r for functional connectivity

Student Servator January 09, 2009 05:57PM

Re: reporting the r for functional connectivity

Student Servator January 09, 2009 06:03PM

Re: reporting the r for functional connectivity

Student Servator January 09, 2009 06:12PM

Re: reporting the r for functional connectivity

Gang Chen January 09, 2009 06:13PM

Re: reporting the r for functional connectivity

Student Servator January 09, 2009 06:47PM

Re: reporting the r for functional connectivity

Student Servator January 09, 2009 09:11PM

Re: reporting the r for functional connectivity

Gang Chen January 10, 2009 08:28AM

Re: reporting the r for functional connectivity

Student Servator January 10, 2009 02:59PM

Re: reporting the r for functional connectivity

Gang Chen January 11, 2009 09:33AM

Re: reporting the r for functional connectivity

Student Servator January 12, 2009 07:35PM

Re: reporting the r for functional connectivity

Gang Chen January 13, 2009 11:32AM

Re: reporting the r for functional connectivity

Student Servator January 14, 2009 01:04PM