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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August 06, 2008 11:39AM
Hello all,

I would like to convert a nifti volume (3D+time) with p-values from a Student's T-distribution into t-values. With this goal in mind, I tried:

3dcalc -a nifti_name.nii -expr 'fitt_p2t(a,df)' -prefix output.nii

where df is the number of degrees of freedom.
However, the output volume is all zeros.

Does anybody know what the problem is and how to solve it?

Thanks
Cesar

Subject Author Posted

3dcalc + fitt_p2t

cesar caballero August 06, 2008 11:39AM

Re: 3dcalc + fitt_p2t

Gang Chen August 06, 2008 12:15PM