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

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ptaylor
November 07, 2022 05:36PM
Howdy-

Just to note, the magic of internal t-to-p (and vice versa) calculations is not limited to BRIK/HEAD datasets; NIFTI datasets can have this happen, as well.

AFNI statistics program populate AFNI header fields that contain degree-of-freedom (and other stats label) information, and that is what is used. These include BRICK_STATAUX and BRICK_STATSYM. The FDR curve is created in a similar way, and populates information in fields such as FDRCURVE_000000, etc. The AFNI header is storable within NIFTIs, and hence both BRIK/HEAD and NIFTI files can contain this information.

Can I ask what kind of statistic you have, and perhaps where it was calculated (presumably, not an AFNI program if that information hasn't been propagated)?

--pt
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P-value thresholding with atypical dataset Attachments

jpiaszynski November 07, 2022 05:24PM

Re: P-value thresholding with atypical dataset

ptaylor November 07, 2022 05:36PM

Re: P-value thresholding with atypical dataset

jpiaszynski November 07, 2022 06:12PM

Re: P-value thresholding with atypical dataset

ptaylor November 08, 2022 09:01AM

Re: P-value thresholding with atypical dataset

jpiaszynski November 08, 2022 02:45PM