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  

Previous Message Next Message
Message List New Topic Print View
|
Emperor Zhark
August 04, 2015 10:17AM
I wrote 3dclust back in the Paleolithic days of AFNI, and my decision then to report only 1 decimal place was for 2 reasons:
  • Keeping the table compact
  • Not pretending to have more precision than really exists
About the latter point: even printing to 0.1 mm accuracy is really too much -- considering FMRI voxels are usually 2-3 mm in size. I can't see how it's reasonable to expect precision to the 10 or even 1 micron level from such data.

Only for a special application to super-resolution voxels (probably not from MRI) would it be reasonable (IMHO) to give more decimal places.
Reply Quote
RSS
Subject Author Posted

3dclust precision

rollom July 30, 2015 12:24PM

Re: 3dclust precision

rick reynolds July 30, 2015 01:27PM

Re: 3dclust precision

rollom July 30, 2015 03:50PM

Re: 3dclust precision

Isaac Schwabacher July 30, 2015 03:56PM

Re: 3dclust precision

Peter Molfese July 30, 2015 03:59PM

Re: 3dclust precision

Emperor Zhark August 04, 2015 10:17AM