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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October 12, 2012 03:58PM
I've run some structural data through the VBM8 (SPM8 toolbox) and then run into trouble with running 3dttest++ on the resulting files. I've used this procedure before (since I prefer to operate in AFNI land). Essentially when I load the overlay stats over a mean image (made with 3dMean), I end up with the stats image looking considerably larger than the underlay (see below). Running nifti_tool on the files shows that they really aren't that different. Any tips would be appreciated.

nifti_tool -diff_hdr -infile ave.nii.gz stats.nii.gz 
  name                offset  nvals  values
  ------------------- ------  -----  ------
  dim                   40      8    3 121 145 121 1 1 1 1
  dim                   40      8    5 121 145 121 1 6 1 1
  vox_offset           108      1    3168.0
  vox_offset           108      1    10560.0

Subject Author Posted

Size of overlay vs. underlay issue

Peter Molfese October 12, 2012 03:58PM

Re: Size of overlay vs. underlay issue

Daniel Glen October 15, 2012 04:29PM

Re: Size of overlay vs. underlay issue

Peter Molfese October 15, 2012 04:53PM

Re: Size of overlay vs. underlay issue

Daniel Glen October 15, 2012 05:30PM

Re: Size of overlay vs. underlay issue

Daniel Glen October 17, 2012 01:57PM