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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rick reynolds
March 20, 2003 05:05PM

Hi Francesca,

One option is if you know how many slices are in a volume, say 25,
for instance, you can add or subtract that number from the file
number to get an adjacent volume slice.

E.g. to replace I.123, use I.098 (assuming 25 slices in a volume)

To verify this, (or as another option), use file_tool (that's a
program I wrote to do some miscellaneous work with files). You
can use the option '-ge_header' to display GE header info, and
the required '-infiles file1 file2 ...' option.

So to check that I.098 is in the right spot (look for 'zoff'):

file_tool -ge_header -infiles I.098

To check a bunch:

file_tool -ge_header -infiles I.0[89]? I.10?

To just look at the offsets:

file_tool -ge_header -infiles I.0[89]? I.10? | grep zoff

To verify which files are in the list:

echo I.0[89]? I.10?

I hope this helps!

- Rick
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Subject Author Posted

I-file headers

Francesca March 20, 2003 05:00PM

Re: I-file headers

bob cox March 20, 2003 05:04PM

Re: I-file headers

rick reynolds March 20, 2003 05:05PM

Re: I-file headers

Francesca March 20, 2003 05:10PM